I would like to express my sincere thanks to my teachers, Ms. Rapeeporn Sroinam and Ms. Kittiporn Nonkukhetkhong, for their help throughout the course of internship. I’m most grateful for their teaching and suggestion, not only the project but also lots of behaving myself properly in the establishment. I wouldn’t have achieved this far, and the project wouldn’t have been completed without the support that they always gave me.
Finally, I most gratefully acknowledge my parents and my co-workers for their help throughout the period of this project.