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Kanisius, 1988
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Jacobs, Tom, editor
Kanisius , 1992
Buku Teks SO
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[Publisher not identified], 2008
Artikel Jurnal
Menase Kotouki, author
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UI - Tesis Membership
Silitonga, Tornado Gregorius, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2011
UI - Skripsi Open