Saha, S. S. and Dasgupta, J. M. (1979) “The Malayan Serpent Eagle, <I>Spilornis cheela</i> Malayensis (Swann), in the Great Nicobar Island, an Addition to the Indian Avifauna”, Records of the Zoological Survey of India, 77(1-4), pp. 89–91. doi: 10.26515/rzsi/v77/i1-4/1979/161845.