The author would like to thank all those individuals from Jabil Circuit, BCM Electronics, Unico Technology, Perwaja Steel, B. Braun and many other companies who provide useful suggestions for improving the previous versions of the guidesheets. Most of the suggestions have been incorporated in this present version of the guidesheets.
The author also would like to thank Universiti Sains Malaysia (in the form of research grant # 6036047) and the Emerald Research Funds Award Foundation, U.K. for supporting this work.
A big thanks to Dr. Andrew Metcalfe of the Department of Applied Mathematics, University of Adelaide , Australia for his numerous suggestions.
