الفهرس | Only 14 pages are availabe for public view |
Abstract I would like to express my sincere gratitude to all those who have contributed to the completion of this thesis. I extend my deepest gratitude to Professor Wafaa Batran. Simply, it has been an honour and a pleasure to work under her supervision, and I would like to thank her for her support and encouragement. Also, I would like to thank Professor Laila Abdel Raziq whose opinions and discussions have helped me to complete this thesis. I owe a special debt to Dr. Salwa Mabrouk . I am grateful to her support and moral support . I would like to thank my parents, my sister, my brother and my circle of family and friends whose keen interests, patience, and continuous support and encouragement have helped me to complete this work. |