Somchai Isichaikul. 1994. Studies on the environmental factors influencing on microhabitat and wing polymorphism in the rice brown planthopper, Nilaparvata lugens (Stal) (Homoptera : Delphacidae). , Ehime University;

Somchai Isichaikul. Studies on the environmental factors influencing on microhabitat and wing polymorphism in the rice brown planthopper, Nilaparvata lugens (Stal) (Homoptera : Delphacidae). . Matsuyama:Ehime University, 1994.

Somchai Isichaikul. (1994) Studies on the environmental factors influencing on microhabitat and wing polymorphism in the rice brown planthopper, Nilaparvata lugens (Stal) (Homoptera : Delphacidae) . Ehime University/Matsuyama.