MURUGAN, Salinee; MOHD YASIN, Ruhizan binti. The Effectiveness of Project Oriented Problem based Learning (POPBL) in Improving Student Learning Levels in History. International Journal of Academic Research in Progressive Education and Development, [S. l.], v. 13, n. 1, 2024. Disponível em: https://www.ijarped.com/index.php/journal/article/view/569. Acesso em: 3 aug. 2025.