Suleiman Al-Houriokla, Ugla, and Mohammed Tawfiq Mohammed Abdullah. “Construct a Positive Thinking Scale for Players of Some of Nineveh Governorate Teams Researcher”. Al-Rafidain Journal For Sport Sciences 23, no. 71 (April 1, 2020): 173–197. Accessed October 2, 2025. https://rsprs.uomosul.edu.iq/index.php/rsprs/article/view/50839.