Berry, Brian J.L., author
ST Martin's Press, 1973
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Artikel Jurnal
Paridah, author
Program Pascasarjana Universitas Indonesia, 2006
UI - Tesis (Membership)
Abdul Azis, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2002
UI - Skripsi (Membership)
Hance, William A., author
Columbia University Press, 1970
Buku Teks