Andrusiv, Uliana, Volodymyr Kossak, Mariya Mykhayliv, Fedina Nataliіa, y Zabzalіuk Dmytro. «Grounds and Consequences of Waiver of the Contract on the Provision of Tourist Services». Amazonia Investiga 10, no. 45 (octubre 29, 2021): 63–72. Accedido enero 18, 2026. https://amazoniainvestiga.info/index.php/amazonia/article/view/1744.