Sumaitt Putchakarn. (1991) Effects of the crude extracts of molting hormone (ecdysteroid) from some plants in Thailand on the molt cycle of the giant tiger prawn : Penaeus monodon fabricius. Mahidol University,:ม.ป.ท.Sumaitt Putchakarn. 1991. Effects of the crude extracts of molting hormone (ecdysteroid) from some plants in Thailand on the molt cycle of the giant tiger prawn : Penaeus monodon fabricius. ม.ป.ท.:Mahidol University,;Sumaitt Putchakarn. Effects of the crude extracts of molting hormone (ecdysteroid) from some plants in Thailand on the molt cycle of the giant tiger prawn : Penaeus monodon fabricius. ม.ป.ท.:Mahidol University, 1991. Print.