Syed Zaman Akhtar, Md Tabrez Nafis, Samar Wazir. “A Survey on Robotic Process Automation and Its Importance in Digital Transformation”. International Journal of Advanced Science and Technology, Vol. 29, no. 04, June 2020, pp. 5828 -43, http://sersc.org/journals/index.php/IJAST/article/view/27159.