White, R.J.
Harper & Brothers, 1961
Buku Teks
Bayu Kristianto, reviewer
2000
UI - Skripsi Membership
Bezine, Ching Yun
Gramedia Pustaka Utama , 1995
Buku Teks
Archer, Jeffrey
Jakarta Gramedia Pustaka Utama 2000,
Buku Teks
Patterson, James
Little, Brown, 1997
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