Phatcharee Phoempoon Faculty of Industrial Technology Songkhla Rajabhat University, Songkhla, Thailand.
Weerachai Sangchay Faculty of Industrial Technology Songkhla Rajabhat University, Songkhla, Thailand.
Kantamon Sukrajang Faculty of Industrial Technology Songkhla Rajabhat University, Songkhla, Thailand.
Tanarat Rattanakool Faculty of Industrial Technology Songkhla Rajabhat University, Songkhla, Thailand.
