K.Dhal, P, and K Ramash Kumar. “A Novel Hybrid Particle Swarm- Multiverse Optimization Based Voltage Stability Improvement in IEEE 57 Bus System”. International Journal of Engineering & Technology 7, no. 2.24 (April 25, 2018): 381–386. Accessed November 22, 2024. https://sciencepubco.com/index.php/ijet/article/view/12089.