Nofriyanti, Desi, and Hardeli Hardeli. “Analisis Kebutuhan LKPD Berbasis Problem Based Learning Pada Materi Struktur Atom Untuk Kelas X Fase E SMA”. YASIN 3, no. 5 (October 26, 2023): 1251-1261. Accessed July 8, 2024. https://ejournal.yasin-alsys.org/index.php/yasin/article/view/1982.