MARILIATY, Nani; SUHERY, Tatang. Optimization of basic chemistry learning: Validation of STEM-based problem-based learning materials for chemical equilibrium . Asian Journal Collaboration of Social Environmental and Education, [S. l.], v. 2, n. 1, p. 30–45, 2024. DOI: 10.61511/ajcsee.v2i1.2024.909. Disponível em: https://journal-iasssf.com/index.php/AJCSEE/article/view/909. Acesso em: 11 jul. 2025.