Artikel Jurnal
Teddy Boen, author
[publisher not identified], [date of publication not identified]
Buku Referensi
Roro Suminten, author
Fakultas Teknik Universitas Indonesia, 1998
UI - Skripsi (Membership)
M. Ikhsan Bouty, author
Pustaka Sinar Harapan , 1987
Buku Teks
Sofwan Badri, author
Rineka Cipta, 1991
Buku Teks