Purba MSB, Sudrajat A. Pengaruh Model Problem Based Learning Berbantuan Media Chemsketch terhadap Hasil Belajar Siswa pada Materi Hidrokarbon. Panthera j. ilm. pendidik. Sains dan terap. [Internet]. 2026 Jul. 3 [cited 2026 Jul. 5];6(3):1527-36. Available from: https://e-journal.lp3kamandanu.com/index.php/panthera/article/view/1315