Munawaroh, Siti, Herunata Herunata, and Silviani Silviani. “Improving Students’ Creative Thinking Skills through Problem Based Learning on Colloid: A Lesson Study Practice”. Hydrogen: Jurnal Kependidikan Kimia 13, no. 3 (June 30, 2025): 554–567. Accessed September 30, 2025. https://ojspanel.undikma.ac.id/index.php/hydrogen/article/view/15840.