SITEPU, Edy Sahputra et al. STRUCTURAL MODELS FOR SUSTAINABLE TOURISM DEVELOPMENT IN MEDAN CITY. International Journal of Applied Sciences in Tourism and Events, [S.l.], v. 3, n. 2, p. 158-177, dec. 2019. ISSN 2580-5592. Available at: <https://ojs.pnb.ac.id/index.php/IJASTE/article/view/1571>. Date accessed: 25 apr. 2024. doi: http://dx.doi.org/10.31940/ijaste.v3i2.1571.