LIA, A. .; GUNAWAN; KUSUMA, J. W. .; HERAWATI, R. A. . IMPROVEMENT OF STUDENT LEARNING ACTIVITY AND LEARNING ACHIEVEMENT USING THE PROBLEM-BASED LEARNING MODEL. International Journal of Multidisciplinary Research and Literature, [S. l.], v. 3, n. 4, p. 428–435, 2024. DOI: 10.53067/ijomral.v3i4.240. Disponível em: https://ijomral.esc-id.org/index.php/home/article/view/240. Acesso em: 8 may. 2026.