Hudak, Carolyn M., author
EGC, 1997
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Artikel Jurnal
Muhammad Luthfi Ubaidillah, author
Program Pascasarjana Universitas Indonesia, 2004
UI - Tesis (Membership)
Adang Ismail, author
Pilar Media, 2006
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Hall, Calvin S. (Calvin Springer), 1909-1985, author
Kanisius, 1993
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