حنا إبراهيم ي. The Effect of Instructional Program in Modifying External Orientation of Achievement Responsibility to Internal at Students of Basic Education College. BERJ [Internet]. 2008 Dec. 1 [cited 2025 Oct. 26];7(4):1-43. Available from: https://stats.uomosul.edu.iq/index.php/berj/article/view/38674