OKTIARMI, P.; RUSDI, M.; ASYHAR, R. Conceptual Validation of Project Based Learning in Buffer Solution. PENDIPA Journal of Science Education, [S. l.], v. 7, n. 1, p. 6–13, 2023. DOI: 10.33369/pendipa.7.1.6-13. Disponível em: https://ejournal.unib.ac.id/pendipa/article/view/25572. Acesso em: 7 may. 2024.