Suprada Sukonthabhirom na Pattalung และ Surapol Visetson; Mantana Milne; Apichai Dao-rai; Sukapong Vayuparp. (2003) Toxicity of Extract from Thai Neem, Azadiracta indica var. siamensis Valeton to Corn Stemborer, Ostrinia furnacalis (Guenee). <i>Thai Agricultural Research Journal</i>, <i>21</i>(2), 160-169.Suprada Sukonthabhirom na Pattalung และ Surapol Visetson; Mantana Milne; Apichai Dao-rai; Sukapong Vayuparp. "Toxicity of Extract from Thai Neem, Azadiracta indica var. siamensis Valeton to Corn Stemborer, Ostrinia furnacalis (Guenee)". Thai Agricultural Research Journal 21 (2003):160-169.Suprada Sukonthabhirom na Pattalung และ Surapol Visetson; Mantana Milne; Apichai Dao-rai; Sukapong Vayuparp. Toxicity of Extract from Thai Neem, Azadiracta indica var. siamensis Valeton to Corn Stemborer, Ostrinia furnacalis (Guenee). Department of Agriculture:ม.ป.ท. 2003.