Acknowledgments
This study was supported in part by “The 90P
th PAnniversary of
Chulalongkorn University Fund (Ratchadaphiseksomphot
Endowment Fund)” and Chulalongkorn University Graduate
Scholarship to commemorate the 72P
nd PAnniversary of his
Majesty King Bhumibol Adulyadej, Chulalongkorn University.
Finally, the authors also thank Dr. 4TJeffrey4T Dale Hobbs and Dr.
Piengpen Na Pattaung from Phuket Rajabhat University for
their useful comments and suggestions for improving the
present manuscript.