SAIFFULLAH, M. F. .; GERIJIH, D. D.; YUNUS, F. A. N. .; RAHIM, M. B. .; ALI, K. F. . Commercial HVAC Maintenance Instructional Video. Research and Innovation in Technical and Vocational Education and Training, [S. l.], v. 2, n. 2, p. 061–068, 2022. Disponível em: https://publisher.uthm.edu.my/periodicals/index.php/ritvet/article/view/5155. Acesso em: 29 mar. 2023.