Peacock, W. Frank, editor
Springer, 2012
eBooks
Universitas Indonesia, 2005
UI - Skripsi Membership
Hembing Wijayakusuma
Pustaka Populer Obor, 2003
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Artikel Jurnal
Katili, Amalia K.M.
[publisher not identified], [date of publication not identified]
Artikel Jurnal