Hassan, Muhammad, and Ghulam Murtaza Maitlo. “Impact of Crew Training and Safety Management System on Operational Management in Aviation Industry of Pakistan”. Amazonia Investiga 9, no. 30 (July 7, 2020): 119–126. Accessed July 3, 2024. https://amazoniainvestiga.info/index.php/amazonia/article/view/1151.