Vongvilay Phengsouvana และ Tasnee Attanandana. (2010) Lime application in two acid upland soils for soybean production in Champasak province, Lao PDR. /|cVongvilay Phengsouvana. Kasetsart University,:ม.ป.ท.Vongvilay Phengsouvana และ Tasnee Attanandana. 2010. Lime application in two acid upland soils for soybean production in Champasak province, Lao PDR. /|cVongvilay Phengsouvana. ม.ป.ท.:Kasetsart University,;Vongvilay Phengsouvana และ Tasnee Attanandana. Lime application in two acid upland soils for soybean production in Champasak province, Lao PDR. /|cVongvilay Phengsouvana. ม.ป.ท.:Kasetsart University, 2010. Print.