Lenin, K., B. R. Reddy, and M. S. Kalavathi. “Dolphin Echolocation Algorithm for Solving Optimal Reactive Power Dispatch Problem”. International Journal of Computer (IJC), vol. 12, no. 1, Apr. 2014, pp. 1-15, https://ijcjournal.org/index.php/InternationalJournalOfComputer/article/view/244.