Mann, Itamar
Cambridge University Press, 2016
Buku Teks
Plender, Richard
Sijthoff, 1972
Buku Teks SO
Kaplan, Morton A.
John Wiley & Sons, 1961
Buku Teks
Vincent Chetail, Celine Bauloz
Edward Elgar, 2015
Buku Teks
edited by Reginald T. Appleyard
University of Western Australia, Centre for Migration and Development Studies, 1988
Buku Teks