Hawkes, David, 1964-
Routledge, 1996
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Dora Nina Lumban Gaol
Fakultas Hukum Universitas Indonesia, 2020
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Kinloch, Graham C.
Prentice-Hall, 1981
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Brzezinski, Zbigniev K.
Frederick A. Praeger, 1962
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Murphy, Craig
West View Press, 1984
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