@article{Phetkliang_2021, title={Research Methodology in Curriculum and Instruction}, volume={14}, url={https://so04.tci-thaijo.org/index.php/journal_sct/article/view/246783}, number={2}, journal={JOURNAL OF SOUTHERN TECHNOLOGY}, author={Phetkliang, Fangkamol}, year={2021}, month={Aug.}, pages={136–140} }