GUEVARA, R. O. Econometric approach in the demand for tourism in El Salvador. Reality and Reflection, [S. l.], v. 36, p. 5–40, 2017. DOI: 10.5377/ryr.v36i0.3610. Disponível em: https://camjol.info/index.php/RyR/article/view/3610. Acesso em: 19 oct. 2024.