Ernica, Santri Yuli, and Hardeli Hardeli. “VALIDITAS DAN PRAKTIKALITAS E-MODUL SISTEM KOLOID BERBASIS PENDEKATAN SAINTIFIK”. Ranah Research : Journal of Multidisciplinary Research and Development 1, no. 4 (July 31, 2019): 812-820. Accessed November 22, 2024. https://jurnal.ranahresearch.com/index.php/R2J/article/view/134.