Grant, George
Wolgemuth & Hyatt, Publishers, Inc, 1989
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Hidayat, author
Fakultas Psikologi Universitas Indonesia, 2007
UI - Skripsi (Membership)
Eneng Khairun Nisa, author
Universitas Indonesia, 2015
UI - Skripsi (Membership)
Guillot, Claude, author
Grafiti Press, 1985
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Komisi Nasional Hak Asasi Manusia, 2005
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