Songyot Phisitkul และ Kiatsiam Kaewdokruk; Anan Polthanee; Preecha Neera. (2006) The Effect of Water Level on the Survival and Rice Damages by Black Beetle (Heteronychus lioderes Redtenbacher). <i>Thai Agricultural Research Journal</i>, <i>24</i>(1), 34-39.Songyot Phisitkul และ Kiatsiam Kaewdokruk; Anan Polthanee; Preecha Neera. "The Effect of Water Level on the Survival and Rice Damages by Black Beetle (Heteronychus lioderes Redtenbacher)". Thai Agricultural Research Journal 24 (2006):34-39.Songyot Phisitkul และ Kiatsiam Kaewdokruk; Anan Polthanee; Preecha Neera. The Effect of Water Level on the Survival and Rice Damages by Black Beetle (Heteronychus lioderes Redtenbacher). Department of Agriculture:ม.ป.ท. 2006.