Ngo, B. B., Nguyen, M. K., Do, D. T. and Ngo, V. T. (2017) “A new switched-capacitor nine-level inverter”, Journal of Technical Education Science, 12(Special Issue 02), pp. 17–21. Available at: https://www.jte.edu.vn/index.php/jte/article/view/346 (Accessed: 7 April 2026).