1. Fixed Effects Regression Models
2. Age and religiosity: Evidence from a three-wave panel analysis;Argue;Journal for the Scientific Study of Religion,1999
3. Religious monopolies and the commodification of religion;Baradaran-Robison;Pepperdine Law Review,2005
4. Brown , Davis Patrick James 2015 Religious characteristics of state dataset, Phase 1 http:///www.thearda.com/Archive/Files/Descriptions/BROWN.asp