Hamdy, Nadder
Taylor & Francis Group, 2009
Buku Teks SO
Vasudevan, Kasturi
Universities Press, 2007
Multimedia
Gaydecki, Patrick
Institution of Engineering and Technology, 2004
eBooks
Ingle,Vinay K
Cengage Learning , 2012
Buku Teks SO
Stanley, William D.
Reston Publishing, 1984
Buku Teks