QIAO, Ling. A Case Study on Peer Mutual-Aid Associations in Enhancing Positive Psychological Qualities among Higher Vocational College Students. Academic Journal of Management and Social Sciences, [S. l.], v. 13, n. 2, p. 97–99, 2025. DOI: 10.54097/ph06j231. Disponível em: https://drpress.org/ojs/index.php/ajmss/article/view/32633. Acesso em: 1 aug. 2026.