Jayasankar, P., B. Anoop, V. _, M. Rajagopalan, K. M. M. Yousuf, P. Reynold, P. K. Krishnakumar, P. Kumaran, V. V. Afsal, and A. A. Krishnan. “Molecular Identification of Delphinids and Finless Porpoise (Cetacea) from the Arabian Sea and Bay of Bengal”. Zootaxa, vol. 1853, no. 1, Aug. 2008, pp. 57–67, doi:10.11646/zootaxa.1853.1.5.