Sanchez– Ruiz, J., L. Coronel–Curimilma, A. Suárez–Jaramillo, and M. Maza–Ortega. “CORN AND WATERFALLS TOURIST ROUTE: CASE STUDY WITH A FOCUS ON CULTURAL AND NATURAL TOURISM”. Universidad Ciencia Y Tecnología, Vol. 24, no. 99, Apr. 2020, pp. 53-60, https://uctunexpo.autanabooks.com/index.php/uct/article/view/295.