M. Abdullah, O. Sarnthoy, S. Tantakom, S. Isichaikul, and S. Chaeychomsri, “Monitoring Insecticide Resistance Development in Beet Armyworm, Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae)”, Agr. Nat. Resour., vol. 34, no. 4, pp. 450–457, Dec. 2000.