1. Bittles, A.H. 1990 Consanguineous Marriage: Current global incidence and its relevance to demographic research. Research Report no 90-186. Population Studies Center: University of Michigan.
2. Census of India 1981. Series 1. Registrar General and Census Commissioner: India.
3. Constantinides, P. 1978 The Greek Cypriots: factors in the maintenance of ethnic identity, in Watson, J.L. (ed.) Between Two Cultures. Migrants and minorities in Britain. Basil Blackwell: Oxford.
4. Darr, A. 1991 The social implications of thalassaemia among Muslims of Pakistani origin in England — family experience and service delivery. Ph.D. Thesis, University of London.
5. Darr, A., & Modell, B. 1988 The frequency of consanguineous marriage among British Pakistanis. Journal of Medical Genetics 25: 186–90.