Yap C K, Ismail A, Tan S G, Omar H
Department of Biology, Faculty of Science and Environmental Studies, University Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
Bull Environ Contam Toxicol. 2002 Dec;69(6):877-84. doi: 10.1007/s00128-002-0141-3.