mahmood lecturer, dr.mohib. “Comparison Between the Strategy of Opposite Class and the Strategy of Jigsaw Integrative,in the Performance by the Students of Physics Department, for the Applications of Measurement and Evaluation”. College of Basic Education Research Journal 17, no. 1 (March 1, 2021): 1–34. Accessed October 26, 2025. https://moss.uomosul.edu.iq/index.php/berj/article/view/39050.