VALERY KIMIYO, G. H.; MIGUEL ÁNGEL, Y. P.; CORNEJO PUMACCAHUA, M. N. Tourism and sustainable development in the historical sanctuary of Machupicchu-Perú. Revista Científica Guacamaya, [S. l.], v. 5, n. 2, p. 106–113, 2021. Disponível em: https://revistas.up.ac.pa/index.php/guacamaya/article/view/2061. Acesso em: 18 aug. 2024.