AN ENHANCED YOLOV9 FRAMEWORK FOR DETECTING MASK-WEARING COMPLIANCE. International Journal of Engineering Research and Science & Technology, [S. l.], v. 22, n. 2(4), p. 1429–1435, 2026. DOI: 10.62643/. Disponível em: https://ijerst.org/index.php/ijerst/article/view/3885. Acesso em: 28 jul. 2026.