Parra, J. B. ., L. H. . Babilonia, and W. N. . Nuñez. “Effects Of The Entry Of Immigrants To Colombia On International Flights On The Hotel Occupancy Rate: A Regression Analysis”. Migration Letters, vol. 20, Mar. 2023, pp. 33-43, https://migrationletters.com/index.php/ml/article/view/8910.