Identification of Potential Risks and Controlling Factors Associated with Helicopter Operation: A Mix-Method Investigation from Oil and Gas Industries. International Journal of Integrated Engineering, [S. l.], v. 11, n. 9, p. 115–122, 2019. Disponível em: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/5437. Acesso em: 8 apr. 2026.