DEB , A. .; ALI, S. . The effect of using collective competition strategy in the application of professional education for students of basic sixth grade in the field of sculpture. Tishreen University Journal- Arts and Humanities Sciences Series, [S. l.], v. 38, n. 3, 2017. Disponível em: https://journal.tishreen.edu.sy/index.php/humlitr/article/view/2462. Acesso em: 6 may. 2024.