1. Bhasin MK, Walter H, Danker-Hopfe H 1992. The Distribution of Genetical, Morphological and Behavioural Traits Among the Peoples of Indian Region. Delhi: Kamla-Raj Enterprises.
2. Bhasin MK, Walter H, Danker-Hopfe H 1994. People of India. An Investigation of Biological Variability in Ecological, Ethno economic and Linguistic Groups. Delhi: Kamla-Raj Enterprises.
3. Bhasin MK, Walter H 2001. Genetics of Castes and Tribes of India. Delhi: Kamla-Raj Enterprises.
4. Buxton LHD 1925. The Peoples of Asia. London: Kegan Paul, Trench & Trnbner.
5. Cavalli-Sforza LL, Menozzi P, Piazza A 1994. The History and Geography of Human Genes. Princeton: Princeton University Press.