Billington, David P., author
Basic Books, 1983
Buku Teks
Zingoni, Alphose, author
Thomas Telford, 1997
Buku Teks
CRC/Taylor & Francis , 2006
Buku Teks
Newmark, N.M. (Nathan Mortimore), 1910-1981, author
Prentice-Hall, 1971
Buku Teks
Broadbent, Geoffrey, author
John Wiley & Sons, 1981
Buku Teks