Cooper, Douglas, author
John & Sons, 2007
Buku Teks
Cooper, Douglas, author
John Wiley & Sons, 2001
Buku Teks
Edwards, Brian, author
Taylor & Francis Group, 2008
Buku Teks
Baskinger, Mark, author
Watson-Guptill Publications, 2013
Buku Referensi
Yee, Rendow, author
John Wiley & Sons, 1997
Buku Teks