©2013 National Research Council of Thailand
Do และผู้แต่งคนอื่นๆ. 2003. Impact of agricultural extension on coffee production in Daklak province, Vietnam. Field of Study Agricultural Systems, Chiang Mai University;
Do และผู้แต่งคนอื่นๆ. (2003) Impact of agricultural extension on coffee production in Daklak province, Vietnam . Chiang Mai University/Chiang Mai.
Do และผู้แต่งคนอื่นๆ. Impact of agricultural extension on coffee production in Daklak province, Vietnam. . Chiang Mai:Chiang Mai University, 2003.
Do และผู้แต่งคนอื่นๆ. (2003) Impact of agricultural extension on coffee production in Daklak province, Vietnam . Chiang Mai University/Chiang Mai.