4Aliya K.2004.Microfinance: a Survey of Recent Literature [ J] .Hamburgisches Weh-Wirtschafts-Archiv, Hamburg In- stitute of Intemalional Economics, Discussion Paper.
5Muhammad Yunus.2008.Creating a World Without Poverty: Social Business and The Future of Capitalism [M] .Public Affairs.
6Word Bank.2OO8.Finance for all Policies and pitfalls in expanding access [R] . WordBank Policy Research Report.
8Berger, A. N. and Udell, G. F. Small Business Credit Av- ailability and Lending Relationship: the Importance of Bank Or- ganizational Structure [ J ]. Journal of Economic, 2002 ( 11 ).
9Stiglitz, J. and Weiss, A Credit rationing in market with imperfect information [J]. The American of Economic Review, 1981(3).