Adenan A. Study Of Flight Operations Safety Area (KKOP) At Yogyakarta International Airport – Kulonprogo. j. manaj. buss. transp. logist. [Internet]. 2025 Apr. 8 [cited 2026 Aug. 9];10(2):107-24. Available from: https://journal.itltrisakti.ac.id/index.php/jmbtl/article/view/1898