JULMA, K.; MARWIANG, M. The Effectiveness of Multimedia Instructional Material on at Risk Student’s Achievement in Mathematics. Journal of Education Khon Kaen University (Graduate Studies Research), [S. l.], v. 13, n. 3-4, p. 1–8, 2019. Disponível em: https://so02.tci-thaijo.org/index.php/EDGKKUJ/article/view/242943. Acesso em: 5 may. 2024.