Mohanraj R, Sathishkumar M, Azeez P A, Sivakumar R
Environmental Impact Assessment Division, Salim Ali Centre for Ornithology and Natural History, Anaikatty, Coimbatore, India.
Bull Environ Contam Toxicol. 2000 May;64(5):638-43. doi: 10.1007/s001280000051.