William J. O'Brien, Carlos T. Formoso, Ruben Vrijhoef, Kerry A. London
CRC Press, Taylor & Francis Group, 2009
Buku Referensi
Murray, Michael
RIBA , 2004
eBooks
Coombs, William E.
McGraw-Hill, 1984
Buku Referensi
Halpin, Daniel W.
John Wiley & Sons, 1980
Buku Teks SO
edited by Joseph J. Waddell, Joseph A. Dobrowolski
McGraw-Hill, 1993
Buku Referensi