TI - A new modelling approach for air transportation: A case study for total number of air passengers per month AU - ÇELİK, R. AU - KARABOÄžA, H.A. AU - DEMİR, Ä. AU - GÜL, E. SO - Sigma Journal of Engineering and Natural Sciences 2024;42:555-565. DO - 10.14744/sigma.2024.00043