1. Abbink, Klaus, Irlenbusch, Bernd, Renner, Elke, 2002. Group size and social ties in microfinance institutions. Working Paper, University of Nottingham and Universitat Erfurt.
2. Ahlin, Christian, Townsend, Robert, 2003. Using repayment data to test across models of joint liability lending. Working Paper, Department of Economics, University of Chicago.
3. An empirical analysis of microfinance: who are the clients?;Alexander,2001
4. The impact of group lending in northeast Thailand;Coleman;Journal of Development Economics,1999
5. Dunn, Elizabeth, 2002. Research strategy for the AIMS core assessments. AIMS working paper, Available at ww.mip.org/component/aims/publications.htm.