AKHTARUZZAMAN, M.; SHAFIE, A. A.; KHAN, M. R.; RAHMAN, M. M. Modeling and Control Simulation of a Robotic Chair-Arm: Protection against COVID-19 in Rehabilitation Exercise. MIST INTERNATIONAL JOURNAL OF SCIENCE AND TECHNOLOGY, v. 8, n. 2, p. 31-40, 16 Dec. 2020.