Rattigan Submok และ Sopon Uraichen. (2014) Beneficial predators and their roles in contolling thrips on lettuce under hydroponics cultivation. Kasetsart University:ม.ป.ท.Rattigan Submok และ Sopon Uraichen. 2014. Beneficial predators and their roles in contolling thrips on lettuce under hydroponics cultivation. ม.ป.ท.:Kasetsart University;Rattigan Submok และ Sopon Uraichen. Beneficial predators and their roles in contolling thrips on lettuce under hydroponics cultivation. ม.ป.ท.:Kasetsart University, 2014. Print.