Мельнійчук, М. М., and В. О. Зейко. “Youth and children’s Tourism: The Essence and Classification by Age”. Visnyk of V. N. Karazin Kharkiv National University, series "Geology. Geography. Ecology"0, no. 44 (December 15, 2016): 118-122. Accessed November 22, 2024. https://periodicals.karazin.ua/geoeco/article/view/7500.