Mr. Ijbara Abed Talahmeh أ. ا. ع. ت. |. “Academic Procrastination and Its Relationship With Self - Concept Among Hebron University Students”. Journal of Al-Quds Open University for Educational & Psychological Research & Studies, vol. 10, no. 28, Oct. 2019, https://journals.qou.edu/index.php/nafsia/article/view/2172.