Phuong NND, Dong LNT. Organizational citizenship behavior: Scale development and validation. HCMCOUJS - SOCIAL SCIENCES [Internet]. 2021 Jun. 29 [cited 2026 Jul. 17];11(1):15-24. Available from: https://journalofscience.ou.edu.vn/index.php/soci-en/article/view/1904