Summatta, Chuthong, and Somchat Sonasang. 2023. “Improvement of APWM Switching Function with Positive Saw-tooth Waveform for AC Choppers”. Journal of Advanced Development in Engineering and Science 13 (36). Babgkok, Thailand:1-13. https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/575.