Chukiat Petlorm. 1992. Toxicity of five insecticides against the Ostrinia furnacalis (Guen), Spodoptera litura (F.) and Heliothis armigera (Hubn.) and their effects on Apis mellifera L. in hybrid and open-pollinated varieties of sunflower (Helianthus annuus L.). Graduate School, Kasetsart University;
Chukiat Petlorm. (1992) Toxicity of five insecticides against the Ostrinia furnacalis (Guen), Spodoptera litura (F.) and Heliothis armigera (Hubn.) and their effects on Apis mellifera L. in hybrid and open-pollinated varieties of sunflower (Helianthus annuus L.) . Kasetsart University/Bangkok.
Chukiat Petlorm. Toxicity of five insecticides against the Ostrinia furnacalis (Guen), Spodoptera litura (F.) and Heliothis armigera (Hubn.) and their effects on Apis mellifera L. in hybrid and open-pollinated varieties of sunflower (Helianthus annuus L.). . Bangkok:Kasetsart University, 1992.
Chukiat Petlorm. (1992) Toxicity of five insecticides against the Ostrinia furnacalis (Guen), Spodoptera litura (F.) and Heliothis armigera (Hubn.) and their effects on Apis mellifera L. in hybrid and open-pollinated varieties of sunflower (Helianthus annuus L.) . Kasetsart University/Bangkok.