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Buku Referensi
Geddes-Brown, Leslie, author
Page One, 2000
Buku Referensi
Dollin, Stuart, author
The Templar Company, 1992
Buku Referensi
Bloomfield, Harold H., author
Ballantine Books , 1983
Buku Teks
Beni Wijaya, author
Fakultas Teknik Universitas Indonesia, 1997
UI - Skripsi (Membership)