1. World population data sheet. 2012. Population Reference Bureau, Washington, DC [Internet]. Available from: http://www.prb.org/pdf12/2012-population-data-sheet_eng.pdf.
2. Area, population, decennial growth rate and density for 2001 and 2011 at a glance for West Bengal and the districts: provisional population totals paper 1 of 2011: West Bengal. Registrar General & Census Commissioner, India. Retrieved 26 January 2012.
3. Endogamy, consanguinity and community genetics
4. Christianson A, Howson CP, Modell B. March of Dimes global report on birth defects. White Plains: March of Dimes Birth Defects Foundation; 2006:24–27.