Munawir Khairil Anwar, Juanda Nawawi, Rakhmat, Nurdin Nara. “Policy Implementation: Aspects of Accuracy in Implementation and Environment in the Aviation Operations Safety Area (KKOP)”. International Journal of Advanced Science and Technology 29, no. 08 (July 1, 2020): 5125-5131. Accessed May 7, 2024. http://sersc.org/journals/index.php/IJAST/article/view/27747.