Phạm, L.N. and Nguyen, V.N. 2023. Improved Carrier-based Modulation for Four-level Neutral Point Clamped Inverters. Journal of Measurement, Control, and Automation. 4, 3 (Dec. 2023), 16–24. DOI:https://doi.org/10.64032/mca.v4i3.185.