Salam A. Hussein. “A New Wireless Sensor Networks Routing Algorithm Based on SPIN Protocols and Circumference Technique”. International Journal of Engineering Research and Advanced Technology - IJERAT (ISSN: 2454-6135) 6, no. 9 (September 15, 2020): 21-27. Accessed October 28, 2020. https://ijerat.com/index.php/ijerat/article/view/476.