Le Nam Pham, Quoc Dung Phan, and Van Nho Nguyen. “ENHANCED CONTROL OF FOUR-LEVEL NNPC INVERTER FOR MEDIUM-VOLTAGE DRIVE APPLICATIONS”. HUIT Journal of Science 26, no. 2E (June 11, 2026): 49. Accessed September 21, 2026. https://ojs.dev.huit.vn/index.php/huit-j-sci/article/view/379.