Williams, Alan., author
Engineering Press, 2000
Buku Referensi
La Londe, William S., editor
New York: McGraw-Hill, 1991
Buku Teks
Hart, Gary C., author
John Wiley & Sons, 1999
Buku Teks
Buchholdt, H.A., author
Thomas Telford, 1997
Buku Teks
Lin, Tung Yen, author
Wiley, 1981
Buku Teks