Acknowledgements
I respect and thank Dr. Christopher
Hartney for giving me lots of help to complete this translation work. As an
English teacher in Vietnam for over 40 years, I still think my
English is not enough for this project. Had it not been for his precious
advice, I would never have been confident enough to finish it. I am extremely
thankful to him for providing such a nice support, although he had busy
schedule in the university.