Majeed Aziz, Iman. “Model Effectiveness Good Lavoie The Acquisition of Biological Concepts for Secondgrade Intermediate Students”. International Journal of Psychosocial Rehabilitation 24, no. 2 (April 30, 2020): 9106–9117. Accessed June 19, 2025. https://psychosocial.com/index.php/ijpr/article/view/2859.