Sushil Kumar *, Ashish Jolly. “A Mathematical Model for Estimating the Benefits of Incorporating the Security in Agile Software Development”. International Journal of Control and Automation 13, no. 02 (June 1, 2020): 1317- 1326. Accessed September 27, 2021. https://sersc.org/journals/index.php/IJCA/article/view/27021.