Cullen, John Brooks, 1948-, author
Thomson, 2005
Buku Teks
Dess, Gregory G., author
McGraw-Hill/Irwin, 2004
Buku Teks
Bush, Tony, author
IRCiSoD, , 2006
Buku Teks
Mike Millmore, Philip Lewis, Mark Saunders, Adrian Thornhill, Trevor Morrow
Prentice-Hall, 2007
Buku Teks
David, Fred R., author
Pearson, 2009
Buku Teks