Bolgova, V. V., Makushkin, S. A., Povorina, E. V., Duplij, E. V., & Demchenko, T. S. (2016). The Innovative Control Management of Travel Companies. International Review of Management and Marketing, 6(6S), 79–84. Retrieved from https://econjournals.com/index.php/irmm/article/view/2926