Kanokporn Sawatpru และ Supasit Konyai. (2016) Hydrological drought frequency analysis of the Yom River, Thailand. <i>KKU Engineering Journal</i>, <i>43</i>(2), 100-107.Kanokporn Sawatpru และ Supasit Konyai. "Hydrological drought frequency analysis of the Yom River, Thailand". KKU Engineering Journal 43 (2016):100-107.Kanokporn Sawatpru และ Supasit Konyai. Hydrological drought frequency analysis of the Yom River, Thailand. Faculty of Engineering, Khon Kaen University:ม.ป.ท. 2016.