Ekthammathat, Nuengruethai
Kidarn, Saisakun
Phuruangrat, Anukorn
Thongtem, Somchai
Thongtem, Titipun
Funding for this research was provided by:
Thailand's Office of the Higher Education Commission (National Research University Project for Chiang Mai University)
Bansomdejchaopraya Rajabhat University (BSRU Research Fund)