R. Mohd Nor, S. Md Rozali, and C. Shin Horng, “Positioning Control and Operational Evaluation of A One Mass Rotary System using NCTF Controller”, IJET, vol. 7, no. 3.28, pp. 111–115, Aug. 2018, doi: 10.14419/ijet.v7i3.28.20980.