I would like to acknowldege the support of the Confederation of Scientific and Technological Associations in Malaysia (COSTAM) and the Institute of Mathematical Sciences, University of Malaya.

In particular, I would like to thank the President of COSTAM  Tan Sri Datuk Dr. Augustine Ong  and the Head of the Institute of Mathematical Sciences,  Assoc. Prof. Dr. Nor Aishah Hamzah and Dr Angelina Chin.