Kasim T, M. Jarjees F, Jasim S. The Effect of Learning Programme of Sport Lesson in Developing Social Psychological Harmony of Second Stage Students of Intermediate School. RJSS [Internet]. 2006 Apr. 1 [cited 2025 Oct. 2];12(40):140-63. Available from: https://rsprs.uomosul.edu.iq/index.php/rsprs/article/view/50665