Merta, I.W. et al. 2022. The Effect of Project-Based Learning with the Science, Technology, and Society Approach on Digestive System Material Against the Concept Mastery . Jurnal Penelitian Pendidikan IPA. 8, 6 (Dec. 2022), 2879–2882. DOI:https://doi.org/10.29303/jppipa.v8i6.2406.