Atchara Wongsaengchan Impacts of intensive shrimp cultivation on water quality in the Songkhla Basin, Thailand [microform] / Atchara Wongsaengchan - Ann Arbor, Mich. : University Microfilms International, 1991 - 2 microfiches ; 11 X 15 cm. Thesis (Ph.D.)-University of Tennessee, 1990 Subjects--Topical Terms: Water quality--ThailandShrimps--Thailand