Gunun, Nirawan
Wanapat, Metha
Gunun, Pongsatorn
Cherdthong, Anusorn
Khejornsart, Pichad
Kang, Sungchhang
Funding for this research was provided by:
The Thailand Research Fund (TRF) and the research and development institute, Udon Thani Rajabhat University through the Research Grant for New Scholar (Contract no. TRG5780118)