Ali Mahmoud, A. and Duraid Khaled, A. 2023. The Effect of Designing a Science Unit Based on Multimedia on the Achievement of Second Grade Intermediate Female Students in the City of Mosul. Dirasat Mosiliya. 16, 69 (Nov. 2023), 120–133. DOI:https://doi.org/10.33899/dm.2023.181107.