Сирик, Н., and А. Кусков. 1. “Правовая природа договора о реализации туристского продукта”. The Journal of V. N. Karazin Kharkiv National University. Series: International Relations. Economics. Country Studies. Tourism, no. 1042 (1), 132-37. https://periodicals.karazin.ua/irtb/article/view/6215.