edited by Charles W. Kegley and Eugene R. Wittkopf
McGraw-Hill, 1992
Buku Teks
Henderson, Hazel, author
Kumarian Press, 1999
Buku Teks
edited by John Ravenhil
Oxford University Press, 2014
Buku Teks
Budapest : Akadémiai Kiad, 1976
Buku Teks
Arouri, Mohamed, editor
Academic Press, 2014
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