GHANIM AL-TAE, M.; محمد; SUHEEL NAJEM, M.; محمد. The effect of two educational programs for the techniques of strategic thinking to teach the game of chess in developing the contemplative thinking of the age group 13_14 years. Al-Rafidain Journal For Sport Sciences (RJSS), [S. l.], v. 25, n. 79, p. 64–94, 2025. DOI: 10.33899/rjss.2022.175901. Disponível em: https://ojs.uomosul.edu.iq/index.php/rjss/article/view/11210. Acesso em: 4 aug. 2025.