KRAPIVINA, G. Estimation of free time of the population as the main resource of tourism (for example, Mariupol). REPORTER OF THE PRIAZOVSKYI STATE TECHNICAL UNIVERSITY Section: Economic sciences, [S. l.], n. 35, p. 58–68, 2018. DOI: 10.31498/2225-6725.35.2018.133620. Disponível em: https://journals.uran.ua/ves_pstu/article/view/133620. Acesso em: 18 jul. 2024.