4Biggart N W.Banking on Each Other:The Situational logic of Rotating Savings and Credit Association[N].Discussing Paper,2000.
5Goddard J,McKillop D,Wilson JOS.What Drives the Performance of Cooperative Financial lnstitutions Evidence for US Credit Unions[J].Applied Financial Economics,2008,No.1 8.
6McKillop DG,Ward A-M,Wilson,JOS.The Development of Credit Unions and Their Role in Tackling Financial Exclusion[J].Public Money and Management,2007,V01.27,No.1.