Ma’arif, Alfian, Adha imam Cahyadi, and Oyas Wahyunggoro. 2018. “CDM Based Servo State Feedback Controller With Feedback Linearization for Magnetic Levitation Ball System”. International Journal on Advanced Science, Engineering and Information Technology 8 (3):930-37. https://doi.org/10.18517/ijaseit.8.3.1218.