A. Sabo, O. Adebayo Ogunleye, J. Uzoma, N. S. Abednigo, and U. J. Ozioko, “Two-Area Load Frequency Control Using Hybrid PSO-Fuzzy Logic Controller in a Renewable Integrated Nigerian Grid”, Vokasi UNESA Bull. Eng. Technol. Appl. Sci., vol. 3, no. 3, pp. 629–645, Oct. 2026.