INDRAPANGASTUTI, D.; SURJONO, H. D.; ., S.; YANTO, B. E. Effectiveness of the Blended Learning Model to Improve Students’ Achievement of Mathematical Concepts. Journal of Education and e-Learning Research, [S. l.], v. 8, n. 4, p. 423–430, 2021. DOI: 10.20448/journal.509.2021.84.423.430. Disponível em: https://asianonlinejournals.com/index.php/JEELR/article/view/3570. Acesso em: 28 mar. 2024.