edited by James N. Rosenau
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Buku Teks
Edited by Wayne Sandholts, Christopher A. Whytock
Edward Elgar, 2017
Buku Teks
University of Toronto Press, 2018
Majalah, Jurnal, Buletin
Flora C.I. Chang,
Majalah, Jurnal, Buletin
Brune, Lester H
Buku Teks