by Bubpha Topark ngarm, Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Land Resources and Environment, Michihiro Hara, Tokyo University of Agriculture and Technology, (Tokyo). Iwate University Japan, Suiichi Sugi, Tokyo University of Agriculture and Technology, (Tokyo). Iwate University Japan, Surasak Prachankanchana, Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Land Resources and Environment
Year of Publication 2002

by Viriya Limpinuntana(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Agronomy), 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)

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)