Kriengkrai Jumroenma. (1992) Corn weevil (Sitophilus zeamais Motsch.) and the effects of some organophosphorus insecticides as post-harvest grain and seed protectant in field corn. Mahidol University,:ม.ป.ท.Kriengkrai Jumroenma. 1992. Corn weevil (Sitophilus zeamais Motsch.) and the effects of some organophosphorus insecticides as post-harvest grain and seed protectant in field corn. ม.ป.ท.:Mahidol University,;Kriengkrai Jumroenma. Corn weevil (Sitophilus zeamais Motsch.) and the effects of some organophosphorus insecticides as post-harvest grain and seed protectant in field corn. ม.ป.ท.:Mahidol University, 1992. Print.