Rakpong Petkam และ Frederick William Henry Beamish. (2006) Risk Assessment of Endocrine and Reproductive Physiology in Fish Collected from Different Ecological Reservoirs in Khon Kaen Province. Khon Kaen University:ม.ป.ท.Rakpong Petkam และ Frederick William Henry Beamish. 2006. Risk Assessment of Endocrine and Reproductive Physiology in Fish Collected from Different Ecological Reservoirs in Khon Kaen Province. ม.ป.ท.:Khon Kaen University;Rakpong Petkam และ Frederick William Henry Beamish. Risk Assessment of Endocrine and Reproductive Physiology in Fish Collected from Different Ecological Reservoirs in Khon Kaen Province. ม.ป.ท.:Khon Kaen University, 2006. Print.