Flores-Aguilar, Edilberto, and Aníbal Cárdenas-Gutiérrez. “Chicken Breeding With Natural Food in Peri-Urban Areas As a Contribution to Access to Food”. Ciencia y Agricultura 16, no. 2 (May 2, 2019): 93-104. Accessed May 11, 2021. https://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/9172.