Nguyen, N.-K., and D.-V. Doan. “Designing a Novel Hybrid Fuzzy~GWO~PID Load-Frequency Controller for a Complicated Large-Scale Four-Area Interconnected Power Grid With RES and SMES”. Engineering, Technology & Applied Science Research, vol. 15, no. 3, June 2025, pp. 23217-23, doi:10.48084/etasr.10964.