Khampa, Sittisak, Chaowarat, Pala, Pilajun, Ruangyote, AND Wanapat, Metha. " Effects of Supplementation of Yeast Malate Fermented Cassava Chip as a Replacement Concentrate on Rumen Fermentation Efficiency and Digestibility of Nutrients in Heifer" Naresuan University Journal: Science and Technology (NUJST) [Online], Volume 17 Number 2 (30 July 2013)