DEVELOPMENT OF A REGRESSION MODEL TO FORECAST AIR TRAVEL DEMAND AT BAGHDAD INTERNATIONAL AIRPORT. J. eng. sustain. dev. [Internet]. 2023 Mar. 1 [cited 2024 May 18];27(2):272-81. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1447