Wimolrat Dumkhum และผู้แต่งคนอื่นๆ. (2019) Needs for Extension on Soybean Production in Dry Season of Farmers in Chum Phae District, Khon Kaen Province. <i>Khon Kaen Agriculture Journal</i>, <i>47</i>(4), 667-678.Wimolrat Dumkhum และผู้แต่งคนอื่นๆ. "Needs for Extension on Soybean Production in Dry Season of Farmers in Chum Phae District, Khon Kaen Province". Khon Kaen Agriculture Journal 47 (2019):667-678.Wimolrat Dumkhum และผู้แต่งคนอื่นๆ. Needs for Extension on Soybean Production in Dry Season of Farmers in Chum Phae District, Khon Kaen Province. Faculty of Agriculture:ม.ป.ท. 2019.