NIU, Xing. Cooperative Learning on Sports Confidence among Students of Baseball Elective. Journal of Education and Educational Research, [S. l.], v. 8, n. 2, p. 342–345, 2024. DOI: 10.54097/y6p2gy87. Disponível em: https://drpress.org/ojs/index.php/jeer/article/view/21015. Acesso em: 2 may. 2026.