Pusparini, Septiwi Tri, Tonih Feronika, and Evi Sapinatul Bahriah. “Pengaruh Model Pembelajaran Problem Based Learning (PBL) Terhadap Kemampuan Berpikir Kritis Siswa Pada Materi Sistem Koloid”. Jurnal Riset Pendidikan Kimia (JRPK) 8, no. 1 (July 31, 2018): 35 - 42. Accessed April 19, 2024. https://journal.unj.ac.id/unj/index.php/jrpk/article/view/8140.