1. Protestants and Catholics: Similar work ethic, different social ethic;Arruñada;Economic Journal,2009
2. Becker , Gary S. Richard A. Posner 2004 Suicide: An economic approach http://storage.globalcitizen.net/data/topic/knowledge/uploads/2009051911410705.pdf
3. Becker , Sascha Ludger Woessmann 2011 Knocking on heaven's door? Protestantism and suicide http://www.thearda.com/asrec/archive/papers/Becker_Protestantism_Suicide.pdf.
4. Suicide in America: A test of Durkheim's theory of religious and family integration, 1933-1980;Breault;American Journal of Sociology,1986