7Paul Sweezy. Modem capitalism and other essays[M]. New York: Monthly Review Press, 1972.
8Paul Baran, Paul Sweezy. Monopoly capital[M]. New York, 1966.
9Paul Baran, Paul Sweezy. The theory of imperialism[M]. New York, 1966.
10Mark M Pitt, Shahidur R Khandker, Omor Haider Chowdhury, etc. Credit programs for the poor and the health status of children in rural bangladesh[J]. International Economic Review, August 2003. Vol,44,No. 3,87-118.