Walliman, Nicholas, author
Sage Publications Ltd , 2001
Buku Teks
Chilvers, Peter, author
[RIBA , ], 2007
eBooks
Garcia-Nunez, Jose, author
Kumarian Press, 1992
Buku Referensi
Paquette, Larry, author
[American Management Association;, ], 2003
eBooks
Edited by John Barnier
Chronicle Books, 2000
Buku Referensi