DEVELOPMENT GUIDANCE PRACTICAL OF PROBLEM BASED LEARNING CHEMISTRY GUIDE FOR COLOID MATERIALS FOR CLASS XI SMA/MA. Entalpi Pendidikan Kimia, [S. l.], v. 4, n. 2, p. 1–7, 2023. DOI: 10.24036/epk.v4i2.260. Disponível em: http://entalpipendidikan.ppj.unp.ac.id/index.php/epk/article/view/260. Acesso em: 23 oct. 2026.