Meihana S. P., N.; Dwi Nastiti, P. .; Ratna Sari, D. . STUDY OF EXPECTED APPROACH TIME CALCULATION IN STANDARD OPERATING PROCEDURES FOR APPROACH CONTROL UNIT SERVICES AT PERUM LPPNPI AMBON BRANCH, INDONESIA. Int. Conf. Adv. Transp. Eng. Appl. Soc. Sci. 2025.