6David J. Singer,“The Level of Analysis Problem in International Relations Theory, ”in Andrew Linklater, ed. Critical in Political Science, Routledge,2000, pp. 835 - 848.
7Colin Elman,“Horse for Course: Why Not Neorealist Theories of foreign Policy?”,Vol.6, No. 1,1996,p.14.
8Colin Elmart, “Horse for Course:Why Not Neorealist Theories of Foreign Policy?”p.48.
9James D. Fearon, “Domestic Politics, Foreign Policy, and Theories of International Relations,”Annual Review of Political Science ,1998,pp:297-298.
