Pebrianti, Puji, et al. “Development of the Acid-Base Module Based on Problem Based Learning With Ethnochemisty to Improve Students Science Literacy Ability”. Jurnal Penelitian Pendidikan IPA, vol. 10, no. 8, Aug. 2024, pp. 4634-40, doi:10.29303/jppipa.v10i8.8582.