HUSSEIN MOHAMMED, A. Constructing an optimism scale for the students of physical education college in the University of Mosul and it is relation with academic achievement. Al-Rafidain Journal For Sport Sciences (RJSS), [S. l.], v. 16, n. 53, p. 168–185, 2025. DOI: 10.33899/rajsport.2010.6091. Disponível em: https://ojs.uomosul.edu.iq/index.php/rjss/article/view/11243. Acesso em: 4 aug. 2025.