López-Herrera, M., R. WingChing-Jones, and A. Rojas-Baurrillón. “Meta Analysis of Pineapple Plant (Ananas Comosus) As Rumniant Feed”. Agronomía Mesoamericana, vol. 25, no. 2, July 2014, pp. 383-92, doi:10.15517/am.v25i2.15453.