Chama Inson และ Savitree Malaipan. (2012) The bees (Hymenoptera : Apoidea) as insect pollinators physic nuts (Euphorbiaceae : Jatropha curcas L.) in Thailand. Kasetsart University,:ม.ป.ท.Chama Inson และ Savitree Malaipan. 2012. The bees (Hymenoptera : Apoidea) as insect pollinators physic nuts (Euphorbiaceae : Jatropha curcas L.) in Thailand. ม.ป.ท.:Kasetsart University,;Chama Inson และ Savitree Malaipan. The bees (Hymenoptera : Apoidea) as insect pollinators physic nuts (Euphorbiaceae : Jatropha curcas L.) in Thailand. ม.ป.ท.:Kasetsart University, 2012. Print.