Gusman, Fadila, Indang Dewata, Andromeda Andromeda, and Rahadian Zainul. “Development of Problem Based Learning Based E-Modules on Salt Hydrolysis Materials to Improve Students Science Literature ”. Jurnal Penelitian Pendidikan IPA 8, no. 5 (November 30, 2022): 2410–2416. Accessed May 17, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/1831.