“Performance Comparison of PSO, HGSO, and DE Optimization Techniques for Computation of Directional Overcurrent Relay Coordination in Power Systems”, Engineering Review, vol. 44, no. 2, pp. 69–86, Nov. 2024, Accessed: Oct. 20, 2025. [Online]. Available: https://engineeringreview.org/index.php/ER/article/view/2429