Martínez-Mota, Rodolfo, et al. “Effects of Anthropogenic Stress on the Presence of Parasites in a Threatened Population of Black Howler Monkeys (Alouatta Pigra)”. THERYA, vol. 9, no. 2, May 2018, p. 161, https://therya.mastozoologiamexicana.com/index.php/THERYA/article/view/572.