Pransopon, P., Sutantawong, M., Hormchan, P. and Wongpiyasatid, A. 2000. Effects of Gamma Radiation on Mature Pupae of the Cotton Bollworm, Helicoverpa armigera (HÜBNER) and Their F1 Progeny. Agriculture and Natural Resources. 34, 3 (Sep. 2000), 401–407.