Ritonga I, Simatupang H. Pengaruh Model Problem Based Learning terhadap Kemampuan Argumentasi Ilmiah Peserta Didik pada Materi Ekosistem di Kelas X SMAN 2 Medan: (The Effect of Problem Based Learning Model on Students’ Scientific Argumentation Ability on Ecosystem Material in Class X SMAN 2 Medan). Biodik [Internet]. 2025 Dec. 27 [cited 2026 May 12];11(04):119-25. Available from: https://www.online-journal.unja.ac.id/biodik/article/view/46840