Suleiman Khatatbeh, Yahya Mubark, and El-Walid Bin Abdullah Fareh Miri. “Types of Morning-Evening Personality and Its Relationship With Self-Vitality and Procrastination Behavior Among University Students”. International Journal of Psychosocial Rehabilitation 25, no. 3 (June 30, 2021): 234–260. Accessed December 22, 2024. https://psychosocial.com/PSY/index.php/ijpr/article/view/991.