S. K. . Mazalan, B. . Ismail, N. . Mohd Mukhtar, and S. . Noor Shah, “Harmonic Reduction in Asymmetric Multilevel Inverters: A Dual Modulation Approach”, Jour. of Adv. Res. Design, vol. 146, no. 1, pp. 270–280, Nov. 2025.