Ngo Van Man and Luu Trong Hieu 2005: Research Cooperation for Livestock-Based Sustainable Agriculture in the Lower Mekong Basin.  Workshop-seminar "Making better  use of local feed resources" (Editors: Reg Preston and Brian Ogle) MEKARN-CTU, Cantho, 23-25 May, 2005. Article #1. Retrieved, from http://www.mekarn.org/proctu/man1.htm