David Chilongola, Freddy, Hitapriya Suprayitno, and Dewanti. “reliminary esearch on ir assenger olume ariation in ilimanjaro nternational irport anzania”. Journal of Infrastructure & Facility Asset Management 2, no. 2 (April 21, 2025): 127–136. ccessed December 6, 2025. https://journal.its.ac.id/index.php/jifam/article/view/3769.