, S. W. P. J. A. P. R. B. “Improving Energy Efficiency of WSN Using Multiple Cluster Head Selection With Dual Data Uploading”. International Journal on Future Revolution in Computer Science &Amp; Communication Engineering, vol. 4, no. 4, Apr. 2018, pp. 872-6, http://www.ijfrcsce.org/index.php/ijfrcsce/article/view/1630.