Aguirre, L. A., D. Gutiérrez, Z. Rodríguez, D. Chuquirima, and R. Abad. “Productive Performance of Grazing Lambs Supplemented With Fermented Coffee Pulp”. Cuban Journal of Agricultural Science, vol. 53, no. 1, Jan. 2019, https://www.cjascience.com/index.php/CJAS/article/view/867.