7Lewis,W.A.,1954,Economic Development with Unlimited Supplies of Labor,Man-chester School of Economics and Social Studies,20(1):122-131.
8Massey,Douglas S.,Joaquin Arango,Graeme Hugo,Ali Kouaouci,Adela Pellegrino and J.Edward Taylor,1993,Theories of International Migration;A Review and Appraisal,Population and Development Review,19(3):431 -466.
9Stark,Oded and David E.Bloom,1985,The New Economics of Labor Migration,American Economics Review,1(75):173-178.
10Stark,Oded and J.Edward Taylor,1989,Relative Deprivation and International Migration,Demography,26(1):1-14.