edited by Richard N. White, Charles G. Salmon
John Wiley & Sons, 1987
Buku Referensi
Levin, Arthur H., author
Builder's Book, 1999
Buku Teks
edited by Neil Appleton
Design Media Publishing, 2013
Buku Referensi
Schucller, Wolfgang, author
Prentice-Hall, 1996
Buku Teks
Frederick S. Merritt and Jonathan T. Ricketts, editor
McGraw-Hill, Inc, 1994
Buku Referensi