AHMAD, S.; MUFIDAH, I.; ARYANTI, D.; GHAZALI, M. binti. Problem Based Learning and Their Effect on Learning Outcomes Estimation of Calculation Operations Number in Elementary School. Journal of Higher Education Theory and Practice, [S. l.], v. 23, n. 17, 2023. DOI: 10.33423/jhetp.v23i17.6532. Disponível em: https://articlegateway.com/index.php/JHETP/article/view/6532. Acesso em: 22 jul. 2024.