HASSAN QADER, A.; أزاد. The Level of positive thinking and its relationship with the accuracy of defensive performance for the free player in Volleyball. Al-Rafidain Journal For Sport Sciences (RJSS), [S. l.], v. 20, n. 64, p. 122–139, 2025. DOI: 10.33899/rajsport.2014.81904. Disponível em: https://ojs.uomosul.edu.iq/index.php/rjss/article/view/10837. Acesso em: 4 aug. 2025.