Yingram, M. “AVERAGE POINT PULSEWIDTH MODULATION METHOD FOR INVERTER-BASED DG IN ELECTRIC POWER SYSTEMS GENERATION”. PSRU Journal of Science and Technology, vol. 5, no. 2, Aug. 2020, pp. 88-97, https://ph01.tci-thaijo.org/index.php/Scipsru/article/view/193059.