Eddy, Pujiono. “Research Example for Business Students: Analysis of the Number of Passengers Departing on Domestic and International Flights at 4 Main Indonesian Airports in 2014-2018”. Reflection: Education and Pedagogical Insights 1, no. 2 (July 31, 2023): 74–77. Accessed August 21, 2025. https://firstcierapublisher.com/index.php/reflection/article/view/31.