Remika Ngangbam, Ashraf Hossain, and Alok Shukla. “Improvement in Stable Election Protocol for Heterogeneous Wireless Sensor Network”. Journal of International Academy of Physical Sciences, vol. 23, no. 3, Sept. 2019, pp. 269-81, https://www.iaps.org.in/journal/index.php/journaliaps/article/view/202.