Wanapat, Metha, Sittisak Khampa, Pala Chaowarat, and Rungson Singhalert. 2009. “Effects of Supplementation of Yeast-Malate Fermented Cassava Chip As a Replacement Concentrate on Rumen Fermentation Efficiency and Digestibility of Nutrients in Cattle”. Pakistan Journal of Nutrition 8 (4): 447–451. https://doi.org/10.3923/pjn.2009.447.451.