VANEGAS, Juan Gabriel et al. Service quality in Medellin hotels using perceptual maps. Cuadernos de Administración, [S.l.], v. 34, n. 60, may 2018. ISSN 2256-5078. Available at: <http://cuadernosdeadministracion.univalle.edu.co/index.php/cuadernos_de_administracion/article/view/5927>. Date accessed: 22 july 2018.