Through this opportunity, the writer would like to say thank you very much in any kinds of contributions in making up this thesis . This thesis is made up with great disturbance of work and other any activities. However, because of God's grace the writer is able to finish this thesis. The appreciation and great honour should be received to : 1. Dr. John Situmeang as my personal supervisor of this thesis. A great help has been given by him in order to open my knowledge to tackle the issue. 2. All academic staff at the University of Pelita Harapan. 3. My Family who has been encouraged me to finish my thesis. 4. Dearest Fanny Magdalena who helps and encourages me in any situations. Those who are not mentioned yet, the writer would like to say thank you very much for the greater help. Praise the lord who quickened the writer to be able to finish this thesis. Looking on to him how is able to keep us and acknowledging him as the great creator for mankind.