Martyshenko, Natalya Stepanovna, Elena Borisovna Kmet, and Angelina Georgievna Kim. “The Study of the Cycle of Packaged Tours from the Primorsky Territory”. International Journal of Economics and Financial Issues 5, no. 3S (December 25, 2015): 257–262. Accessed April 25, 2024. https://www.econjournals.com/index.php/ijefi/article/view/1721.