Prahadeeshwaran, S., and G. Maria Priscilla. “A Hybrid Elephant Optimization Algorithm-Based Cluster Head Selection to Extend Network Lifetime in Wireless Sensor Networks (WSNs)”. EAI Endorsed Transactions on Energy Web, vol. 8, no. 31, July 2020, p. e13, https://doi.org/10.4108/eai.1-7-2020.165677.