Sayam Aroonsrimorakot. (1993) Biology and efficiency of small water bug, (Sphaeroderma molestum (Duf.)) in the control of golden apple snail (Pomacea canaliculata). Mahidol University,:ม.ป.ท.Sayam Aroonsrimorakot. 1993. Biology and efficiency of small water bug, (Sphaeroderma molestum (Duf.)) in the control of golden apple snail (Pomacea canaliculata). ม.ป.ท.:Mahidol University,;Sayam Aroonsrimorakot. Biology and efficiency of small water bug, (Sphaeroderma molestum (Duf.)) in the control of golden apple snail (Pomacea canaliculata). ม.ป.ท.:Mahidol University, 1993. Print.