7Friedman,D. (1977).A Theory of the Size and Shape of Nations[J].Journal of Political Economy(February).
8Hobson, J.M. ( 1997).The Wealth of Sates: A Comparative Sociology of International Economic and Political Change [M].Cambridge University Press.
9Levi, M. ( 1988).Of Rule and Revenue[M].Berkely, Los Angeles and London. University of California Press.
10Mick Moore. (2004).Revenues, State Formation, and the Quality of Governance in Developing Countries[J].International Political Science Review, Vol 25, No.3,297-319.
