iv
ACKNOWLEDGEMENTS
This thesis is completed with lots of working hours and is contributed
by a large amount of enthusiasm, effort and assistance from many people.
First and foremost, I would like to express my gratitude to my
supervisor, Dr. Phạm Lan Anh for her support. Without her guidance, advice
and comments, I would not complete this research paper.
Moreover, I would like to send my special thanks to all of the teachers
at Quynh Mai Secondary School for their help and suggestions which are very
necessary and useful to me during the progress of this thesis.
Additionally, I am so grateful for the assistance from the students at
Quynh Mai Secondary School with their answers for the interview and
questionnaires.
Last but not least, I would like to send my special thanks to my beloved
family, who are always supportive and enthusiastic to me during the progress
of making this thesis.