Vanthong Phengvichith and Preston T R 2010 Effect of feeding processed cassava foliage on growth performance and nematode parasite infestation of local goats in Laos.  (Editor: Reg Preston) International Conference on Livestock, Climate Change and Resource Depletion, Champasack University, Pakse, LAO PDR, 9-11 November 2010 . httm://www.mekarn.org/workshops/pakse/html/vant.htm