Tesfamikael HH, Fray A, Mengsteab I, Semere A, Amanuel Z. Construction of Mathematical Model of DC Servo Motor Mechanism with PID controller for Electric Wheel Chair Arrangement. JEI [Internet]. 2021 Mar. 31 [cited 2026 Mar. 21];3(1):49-60. Available from: https://irojournals.com/iroei/article/view/459