Samosir CM, Muhammad I, Marchy F, Elmawati E. Research Trends in Problem Based Learning in Middle School (1998-2023): A Bibliometric Review. kjmp [Internet]. 30 Juni 2023 [dikutip 9 Oktober 2025];6(1):46-8. Tersedia pada: https://www.jurnal.lp2msasbabel.ac.id/sus/article/view/3237