{"id":"https://openalex.org/A5011814560","orcid":"https://orcid.org/0000-0001-5985-5570","observed_orcids":["https://orcid.org/0000-0001-5985-5570"],"display_name":"Siti Hajar","raw_author_names":["Hajar, Siti","Siti Aisyah Hajar","Siti Hajar","Siti Hajar Hajar"],"full_name":"Siti Hajar Hajar","works_count":87,"cited_by_count":370,"summary_stats":{"2yr_mean_citedness":1.9534883720930232,"h_index":9,"i10_index":8},"ids":{"openalex":"https://openalex.org/A5011814560","orcid":"https://orcid.org/0000-0001-5985-5570","observed_orcids":["https://orcid.org/0000-0001-5985-5570"]},"affiliations":[{"institution":{"id":"https://openalex.org/I130218214","ror":"https://ror.org/044b0xj37","display_name":"Indonesia University of Education","country_code":"ID","type":"education","lineage":["https://openalex.org/I130218214"]},"years":[2021]},{"institution":{"id":"https://openalex.org/I203899302","ror":"https://ror.org/048g2sh07","display_name":"Universiti Teknologi Petronas","country_code":"MY","type":"education","lineage":["https://openalex.org/I203899302"]},"years":[2021]},{"institution":{"id":"https://openalex.org/I254887060","ror":"https://ror.org/01kknrc90","display_name":"Universitas Sumatera Utara","country_code":"ID","type":"education","lineage":["https://openalex.org/I254887060"]},"years":[2024,2018]},{"institution":{"id":"https://openalex.org/I3129799171","ror":"https://ror.org/031bayg24","display_name":"Cenderawasih University","country_code":"ID","type":"education","lineage":["https://openalex.org/I3129799171"]},"years":[2026,2025,2024]},{"institution":{"id":"https://openalex.org/I3132802412","ror":"https://ror.org/03kc2e209","display_name":"Muhammadiyah University of Makassar","country_code":"ID","type":"education","lineage":["https://openalex.org/I3132802412"]},"years":[2020]},{"institution":{"id":"https://openalex.org/I4210090582","ror":"https://ror.org/00bt0h739","display_name":"Universitas Muhammadiyah Parepare","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210090582"]},"years":[2021]},{"institution":{"id":"https://openalex.org/I4210096893","ror":"https://ror.org/00tas1680","display_name":"North Sumatra Islamic University","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210096893"]},"years":[2026]},{"institution":{"id":"https://openalex.org/I4210105059","ror":"https://ror.org/01j1wt659","display_name":"Universitas Muhammadiyah Malang","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210105059"]},"years":[2017]},{"institution":{"id":"https://openalex.org/I4210113907","ror":"https://ror.org/01wqn3353","display_name":"Universitas Muhammadiyah Prof Dr Hamka","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210113907"]},"years":[2026,2025]},{"institution":{"id":"https://openalex.org/I4210133793","ror":"https://ror.org/045vhys49","display_name":"Universitas Muhammadiyah Cirebon","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210133793"]},"years":[2025]},{"institution":{"id":"https://openalex.org/I4210135348","ror":"https://ror.org/03g5gja16","display_name":"Universitas Jayabaya","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210135348"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I4210137904","ror":"https://ror.org/03z1wm043","display_name":"Universitas Islam Negeri Sumatera Utara","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210137904"]},"years":[2025,2024]},{"institution":{"id":"https://openalex.org/I4210139646","ror":"https://ror.org/03ve0eh58","display_name":"Universitas Muhammadiyah Sumatera Utara","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210139646"]},"years":[2026,2025,2024,2023,2022,2021,2020,2018]},{"institution":{"id":"https://openalex.org/I4387152218","ror":"https://ror.org/03gz5yh89","display_name":"Universitas Hasyim Asy'ari","country_code":"ID","type":"education","lineage":["https://openalex.org/I4387152218"]},"years":[2023]},{"institution":{"id":"https://openalex.org/I4404532884","ror":"https://ror.org/006q88a11","display_name":"Nusa Putra University","country_code":"ID","type":"education","lineage":["https://openalex.org/I4404532884"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I4405262158","ror":"https://ror.org/01pjahc11","display_name":"Universitas Islam Al-Aziziyah Indonesia","country_code":"ID","type":"education","lineage":["https://openalex.org/I4405262158"]},"years":[2021]},{"institution":{"id":"https://openalex.org/I4405273653","ror":"https://ror.org/007n2nm64","display_name":"Universitas Teknologi Sumbawa","country_code":"ID","type":"education","lineage":["https://openalex.org/I4405273653"]},"years":[2021]},{"institution":{"id":"https://openalex.org/I4405275079","ror":"https://ror.org/02y6rhp31","display_name":"Universitas Nahdlatul Ulama Nusa Tenggara Barat","country_code":"ID","type":"education","lineage":["https://openalex.org/I4405275079"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I4405276534","ror":"https://ror.org/05mtsjq78","display_name":"Universitas Islam Negeri Sultan Amai Gorontalo","country_code":"ID","type":"education","lineage":["https://openalex.org/I4405276534"]},"years":[2026]},{"institution":{"id":"https://openalex.org/I4405279387","ror":"https://ror.org/01dnpsp18","display_name":"Universitas Bina Bangsa","country_code":"ID","type":"education","lineage":["https://openalex.org/I4405279387"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I4405284880","ror":"https://ror.org/04c30kj33","display_name":"Institut Teknologi Bacharuddin Jusuf Habibie","country_code":"ID","type":"education","lineage":["https://openalex.org/I4405284880"]},"years":[2026]}],"last_known_institutions":[{"id":"https://openalex.org/I3129799171","ror":"https://ror.org/031bayg24","display_name":"Cenderawasih University","country_code":"ID","type":"education","lineage":["https://openalex.org/I3129799171"]},{"id":"https://openalex.org/I4210096893","ror":"https://ror.org/00tas1680","display_name":"North Sumatra Islamic University","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210096893"]},{"id":"https://openalex.org/I4210113907","ror":"https://ror.org/01wqn3353","display_name":"Universitas Muhammadiyah Prof Dr Hamka","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210113907"]},{"id":"https://openalex.org/I4210139646","ror":"https://ror.org/03ve0eh58","display_name":"Universitas Muhammadiyah Sumatera Utara","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210139646"]},{"id":"https://openalex.org/I4405276534","ror":"https://ror.org/05mtsjq78","display_name":"Universitas Islam Negeri Sultan Amai Gorontalo","country_code":"ID","type":"education","lineage":["https://openalex.org/I4405276534"]},{"id":"https://openalex.org/I4405284880","ror":"https://ror.org/04c30kj33","display_name":"Institut Teknologi Bacharuddin Jusuf Habibie","country_code":"ID","type":"education","lineage":["https://openalex.org/I4405284880"]}],"topics":[{"id":"https://openalex.org/T13136","display_name":"Community-based Tourism Development and Sustainability","count":14,"subfield":{"id":"https://openalex.org/subfields/1409","display_name":"Tourism, Leisure and Hospitality Management"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12687","display_name":"Public Administration in Developing Nations","count":11,"subfield":{"id":"https://openalex.org/subfields/3320","display_name":"Political Science and International Relations"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10055","display_name":"Diverse Aspects of Tourism Research","count":9,"subfield":{"id":"https://openalex.org/subfields/1409","display_name":"Tourism, Leisure and Hospitality Management"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12931","display_name":"Educational Methods and Outcomes","count":7,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13285","display_name":"Local Governance and Development","count":7,"subfield":{"id":"https://openalex.org/subfields/3305","display_name":"Geography, Planning and Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13407","display_name":"Regional Development and Management Studies","value":6.61e-05,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13136","display_name":"Community-based Tourism Development and Sustainability","value":5.66e-05,"subfield":{"id":"https://openalex.org/subfields/1409","display_name":"Tourism, Leisure and Hospitality Management"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13873","display_name":"Educational Methods and Technology","value":5.4e-05,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13285","display_name":"Local Governance and Development","value":4.79e-05,"subfield":{"id":"https://openalex.org/subfields/3305","display_name":"Geography, Planning and Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12554","display_name":"Vitamin C and Antioxidants Research","value":4.72e-05,"subfield":{"id":"https://openalex.org/subfields/2916","display_name":"Nutrition and Dietetics"},"field":{"id":"https://openalex.org/fields/29","display_name":"Nursing"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","score":0.7293999791145325},{"id":"144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","score":0.6894371509552002},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.6779166460037231},{"id":"17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","score":0.4710614085197449},{"id":"199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","score":0.44075554609298706}],"counts_by_year":[{"year":2001,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2013,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2014,"works_count":1,"oa_works_count":0,"cited_by_count":1},{"year":2015,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2017,"works_count":4,"oa_works_count":2,"cited_by_count":7},{"year":2018,"works_count":1,"oa_works_count":1,"cited_by_count":20},{"year":2019,"works_count":2,"oa_works_count":1,"cited_by_count":17},{"year":2020,"works_count":6,"oa_works_count":1,"cited_by_count":24},{"year":2021,"works_count":7,"oa_works_count":7,"cited_by_count":21},{"year":2022,"works_count":6,"oa_works_count":6,"cited_by_count":26},{"year":2023,"works_count":8,"oa_works_count":8,"cited_by_count":42},{"year":2024,"works_count":17,"oa_works_count":17,"cited_by_count":51},{"year":2025,"works_count":19,"oa_works_count":18,"cited_by_count":81},{"year":2026,"works_count":7,"oa_works_count":7,"cited_by_count":80}],"display_name_alternatives":["Hajar, Siti","Siti Aisyah Hajar","Siti Hajar","Siti Hajar Hajar"],"block_key":"s hajar","works_api_url":"https://api.openalex.org/works?filter=author.id:A5011814560","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5011814560","updated_date":"2026-11-13T15:08:24","created_date":"2016-06-24T00:00:00"}