D. B. . Sugiarto, T. A. M. Sinaga, D. Fachrudin, R. Sadiatmi, E. S. . Arti, and E. Amir, “HELICOPTER PROCEDURE DESIGN FOR AIR TRAFFIC MOVEMENT IMPROVEMENT: A CASE OF KERTAJATI INTERNATIONAL AIRPORT”, JAET, vol. 4, no. 2, pp. 76-85, Jun. 2024.