et al., Yudi Pratikno. “Airport Safety System and Procedures As a Determinaton of Aviation Safety and Security from Acts Against the Law”. International Journal of Advanced Science and Technology 28, no. 20 (December 31, 2019): 384 - 390. Accessed March 25, 2026. http://sersc.org/journals/index.php/IJAST/article/view/2739.