“The Adoption of ISO 45001: 2018 in the Civil Aviation Establishment Test and Its Accessibility to the Standard”. Journal of Economics and Administrative Sciences 25, no. 115 (December 1, 2019): 133–144. Accessed November 28, 2024. https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/1762.