P.Balaram, and P.Tulasi ram, D.Akhila, K.Vamsi. “SPEED CONTROL OF DC MOTOR USING PID AND FUZZY LOGIC CONTROLLER”. EPRA International Journal of Research and Development (IJRD), vol. 7, no. 6, June 2022, pp. 139-45, https://eprajournals.net/index.php/IJRD/article/view/536.