Quinn, Alonzo Def, author
McGraw-Hill, 1972
Buku Teks
Agerschou, Hans, author
Thomas Telford, 2004
Buku Teks
Gerwick Jr., Ben C.
Boca Raton: CRC Press, 2000
Buku Teks
Ambrose, James E., author
John Wiley & Sons, c1979
Buku Teks
Vazirani, V.N., author
Khanna Publishers, 1976
Buku Teks