Musab Mohammed Abdullah, Safad Mudhfar Mohammed, and ayad tariq ismael. “Positive Thinking and Negative Thinking Among Students Practicing and Non-Practicing Sports Activities: ‘Positive Thinking and Negative Thinking’”. Journal of Sport Science 16, no. 59 (April 21, 2024): 155–172. Accessed May 18, 2024. https://pessj.uodiyala.edu.iq/index.php/1/article/view/1741.