Fox, James R., author
Oceana Publication, 1992
Buku Referensi
University of Malaya. The Faculty of Law, 1999
Majalah, Jurnal, Buletin
Cambridge University Press, 2015
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editors, Karen B. Brown, David V. Snyder
Springer, 2012
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Roux, Theunis, author
Cambridge University Press, 2018
eBooks