A Bibliometric Analysis of Research on Social Studies Education in Primary Schools: Performance Analysis and Scientific Mapping Lubis, Baihaqi Siddik Sitepu, Melyani Sari Lena, Mai Sri FIP UNP journal article https://repository.unp.ac.id/id/eprint/44817/ https://repository.unp.ac.id/id/eprint/44817/1/MAI%20SRI%20LENA_A%20Bibliometric%20Analysis%20of%20Research_2892%20774%2031PB.pdf open access 2026 Bibliometric Analysis Primary School Research Trends Social Studies Education