Advisory Board:
Pruet  Siribanpitak, Ph.D., Prof.
Tin  Prachyabrued, Ph.D., Prof.
Witoon  Simachokedee, Ph.D.

Executive editor:
Kerat  Sanguansai, Ph.D.                                               Rattana Bundit University, Thailand

Editorial Board:
Bundit Pungnirund, Ph.D., Asst. Prof.                          Suan Sunandha Rajabhat University, Thailand
Chow Rojanasang, Ph.D., Assoc. Prof.                         Sukhothai Thammathirat Open University, Thailand
Chira Prateep, Ph.D., Assoc. Prof.                                 Sukhothai Thammathirat Open University, Thailand
Jitraporn  Sudhivoraseth, Ph.D., Assoc. Prof.              National Institute of Development Administration, Thailand
Kamonchanok  Suthiwartnarueput, Ph.D., Prof.        Chulalongkorn University, Thailand
Kattiya Tawsopar Yangyuen, Ph.D., Asst. Prof.           Rattana Bundit University, Thailand
Noawanit Songkram, Ph.D., Assoc. Prof.                     Chulalongkorn University, Thailand
Orachorn Wattanakul, Ph.D., Asst. Prof.                      Rattana Bundit University, Thailand
Saowalak Ratanavich, Ph.D., Assoc. Prof.                    Srinakharinwirot University, Thailand
Supachai Yavaprabhas, Ph.D., Prof                              Chulalongkorn University, Thailand
Supawadee Chuangchot, Ph.D., Asst. Prof.                 Rattana Bundit University, Thailand
Surapon Nitikraipoj, Ph.D., Prof.                                   Thammasat University, Thailand
Thanita Kongrerk, Ph.D., Asst. Prof.                             University of the Thai Chamber of Commerce, Thailand
Vichuda Rattanapian, Ph.D., Assoc. Prof.                    Rattana Bundit University, Thailand

Managing Team, Office Journal
Anuwat Eamsan, Ph.D.
Khanitha Suksawat, Ph.D., Asst. Prof.
Laksmi  Poolsap
Nantaporn Chalaechorn, Ph.D., Asst. Prof.
Saowacon Kumnuanjit
Somrudee Hutthaphong
Supaporn Sivageeratthana

Proofreader
Sarocha Rattanapien, Ph.D.
Manachai Inkaew, Ph.D., Asst. Prof.

Publisher by:
Rattana Bundit University, Bangkok, Thailand