Álvarez Gómez, S. D. ., A. M. . Izquierdo Morán, L. V. . Moreira Rosales, and O. R. . Aldaz Bombón. “Handling of the Indeterminacy in the Market Segmentation of the Tourist Destination Patrimonial City of Cuenca - Ecuador”. Neutrosophic Sets and Systems, vol. 44, Aug. 2021, pp. 140-6, http://fs.unm.edu/NSS2/index.php/111/article/view/1569.