Hellmann, Donald C.
Japanese foreign policy and domestics politics
University of California Press, 1969
 Buku Teks SO
New directions in the study of foreign policy
edited by Charles F. Herman, Charles W. Kegley, James N. Rosenau
Harper Collins Academic, 1987
 Buku Teks SO
McGuire, Mark F.
Lost directions U.S. foreign assistance policy since new directions
University of Minnesota, 1989
 Buku Teks
Turkish foreign policy survey: Directions and dilemmas in 2007
 Artikel Jurnal
Bartlett, Ruhl
Policy and power; two centuries of American foreign relations.
Hill and Wang, 1963
 Buku Teks SO