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Buku Teks
Edited by Nadia Amoroso
Routledge, cop, 2012
Buku Teks
Egi Mahira Irham, author
Fakultas Hukum Universitas Indonesia, 2016
UI - Skripsi (Membership)
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The Free Press, 1971
Buku Teks
Siregar, Tagor M., author
Program Pascasarjana Universitas Indonesia, 2000
UI - Tesis (Membership)