ADA, A. .; UGWUEZI, N. G. . Effects of Assertiveness Training Technique on Low Self-Concept among Secondary School Students in Awka Education Zone. American Journal of Creative Education, [S. l.], v. 2, n. 2, p. 81–92, 2019. DOI: 10.20448/815.22.81.92. Disponível em: https://www.onlinesciencepublishing.com/index.php/ajce/article/view/332. Acesso em: 8 may. 2024.