Abstract:I take this oppOliunity to express my profound gratitude and deep regards to my supervisor, Dr. Nadianatra bt Musa for her exemplary guidance, monitoring and constant encouragement throughout the course of this thesis. Thc blessing, help and guidance given by her time to time shall carry mc a long way in the joumey of life on which I am about to embark.I also take this opportunity to express a deep sense of gratitude to Prof. Dr. Wang Yin Chai, for his cordial support, valuable infOlmation and guidance, which … Show more