7James M. Lindsay. Congress and the Politics of U.S. Foreign Policy, Baltimore. MD. the Johns Hopkins University Press, 1994.
8Randall B. Ripley and James M. Lindsay, ed.. Congress Resurgent. Foreign and Defense Policy on Capitol Hill. MI. University of Michigan Press, 1993.
9Rebecca K. C. Hersman. Friends and Foes. How Congress and the President Really Make Foreign Policy. Washinqton. D.C.. Brookinas Institution Pres 2000.
10Aaron Wildavsky. "The Two Presidencies",Trans- Action. Vol. 4, December 1966, pp.7-14.
