Sastry, D. B. (1980) “A1, A2, B, 0, MN, Rh, "Kell" and ‘Duffy’ blood groups and sickle cell trait among the Kodavas of Kodagu district, Karnataka State, India”, Anthropological Review, 46(2), pp. 369–374. doi: 10.18778/1898-6773.46.2.14.