Holt, Jon, author
Institution of Engineering and Technology, 2008
eBooks
Artikel Jurnal
Nise, Norman S.
John Wiley & Son, 2004
Multimedia
Pritchard, Wilbur L., author
Prentice-Hall, 1993
Buku Teks
Blanchard, Benjamin S., author
Prentice-Hall, 1998
Buku Teks