Asda, Viola Dwicha, Andromeda, Yerimadesi, and Hardeli. “Development of Buffer Solution Students’ Worksheet Based on Problem Based Learning With Ethnochemistry to Improve Students’ Science Literacy Ability”. Jurnal Penelitian Pendidikan IPA 9, no. 7 (July 25, 2023): 5220–5227. Accessed November 25, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/4369.