ASMI, A.; SILABAN, S.; SILABAN, R. Needs Analysis for the Development of Electronic-Based Chemistry Teaching Materials Integrated with Problem-Based Learning Model for High School Students in Class X Medan City. Efektor, [S. l.], v. 11, n. 1, p. 94–100, 2024. DOI: 10.29407/e.v11i1.21594. Disponível em: https://ojs.unpkediri.ac.id/index.php/efektor-e/article/view/21594. Acesso em: 2 jan. 2025.