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Buku Teks
Barger, Harold, author
Rand McNally, 1964
Buku Teks
Ballin, Marianne F.H. Hirsch, author
[T. M. C. Asser Press, T. M. C. Asser Press], 2012
eBooks
Lake, Anthony, author
Little, Brown and Company, 2000
Buku Teks
Adithia Ramadhan, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2012
UI - Skripsi (Membership)