ECOLOGICAL MARKETING AS A TOOL OF STRATEGY OF HOTEL BUSINESS AND TOURISM DEVELOPMENT. Ekon. čas. Volins. nac. unìv. ìm. Lesì Ukraïnki [Internet]. 2020 Sep. 29 [cited 2024 Dec. 22];3(23):77-83. Available from: https://echas.vnu.edu.ua/index.php/echas/article/view/610