Rao Pundru, Srinivasa, and Mohan Rao Nallur. “Spatial Three Degree of Freedom Parallel Manipulator Forward Kinematic Position Analysis”. International Journal of Engineering & Technology, vol. 7, no. 4.5, Sept. 2018, pp. 147-50, https://doi.org/10.14419/ijet.v7i4.5.20032.