Youssef RA, Youssef AA, Bashir NM. Advantages and obstacles of using blended e-learning. Al-Ghary Jour. Eco. Admini. Sci. [Internet]. 2021 Nov. 16 [cited 2024 May 5];16(00):218-29. Available from: https://journal.uokufa.edu.iq/index.php/ghjec/article/view/1813