The Development of Blended Instructional System Model by Problem-based Learning for Enhancing Problem Solving Ability of Secondary School Students. International Journal of Psychosocial Rehabilitation, [S. l.], v. 24, n. 1, p. 2140–2148, 2020. DOI: 10.61841/d56anz76. Disponível em: https://www.psychosocial.com/index.php/ijpr/article/view/454. Acesso em: 14 jun. 2025.