Jafari, S., G. Y. Meng, ohamed A. Rajion, M. A. K. Torshizi, and M. Ebrahimi. “Effect of Supplementation of Oil Palm (Eleis Guineensis) Frond As a Substitute for Concentrate Feed on Rumen Fermentation, Carcass Characteristics and Microbial Populations in Sheep”. The Thai Journal of Veterinary Medicine, vol. 48, no. 1, Mar. 2018, pp. 9-18, https://he01.tci-thaijo.org/index.php/tjvm/article/view/117225.