Dewberry and Davis, author
McGraw-Hil, 1996
Buku Referensi
Dewberry and Davis, author
McGraw-Hill, 1996
Buku Referensi
Qin, Qing-Hua, author
Elseiver Academic Press, 2007
Buku Teks
Panjaitan, S. Welsing, author
Fakultas Teknik Universitas Indonesia, 1999
UI - Skripsi (Membership)
Meyer, Carl F., author
Erlangga , 1989
Buku Teks