Rosales Jaramill, C. A., E. R. Rodas Carpi, P. E. Nieto Escandón, C. S. Torres Inga, B. G. Gordillo Guambana, C. Aucapiña, y D. Marín. Removal of Penile Spicules of Covies (Cavia Porcellus) and Its Effect on Weight Gain and Aggressiveness. Revista De Producción Animal, Vol. 30, n.º 1, June 2018, pp. 44-48, https://revistas.reduc.edu.cu/index.php/rpa/article/view/2408.