by Vidhaya Trelo-ges(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Land Resources and Environment), Vichai Sriboonlue(Khon Kaen University, Khon Kaen (Thailand). Faculty of Engineer. Dept. of Agricultural Engineering), Natchaya Khetkratok(Khon Kaen University, Khon Kaen (Thailand). Faculty of Technology. Dept. of Agricultural Engineering), Sirorat Pilawut(Khon Kaen University, Khon Kaen (Thailand). Faculty of Technology. Dept. of Agricultural Engineering)
Published in Khon Kaen Agricultural Journal (Thailand) (01.07.2004)

by Patma Vityakon(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Land Resources and Environment), Sukaesinee Subhadhira(Khon Kaen University, Khon Kaen (Thailand). Faculty of Humanities and Social Sciences. Dept. of Anthropology and Sociology), Viriya Limpinuntana(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Agronomy), Somjai Srilar(Khon Kaen University, Khon Kaen (Thailand). Faculty of Humanities and Social Sciences. Dept. of Anthropology and Sociology), Vidhaya Trelo-ges(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Land Resources and Environment), Vichai Sriboonlue(Khon Kaen University, Khon Kaen (Thailand). Faculty of Engineer. Dept. of Agricultural Engineering), Surasak Prachankanchana(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Land Resources and Environment)
Published in Khon Kaen Agricultural Journal (Thailand) (01.07.2004)