Nurwiyanti DA, Wuryandini E, Listyarini I, Wahyuni T. Analisis Model Problem Based Learning terhadap Materi Pengkristalan dengan Media Konkret. jptam [Internet]. 2023 Sep. 16 [cited 2025 Feb. 5];7(3):21207-14. Available from: http://jptam.org/index.php/jptam/article/view/9649