C. C. Obasi, A. B. Ikharo, S. Ogbikaya, V. A. Balogun, A. Odaba, and L. I. Ogbewey, “Step-wise Computational Analysis of Kinematics of 3 – Links Articulated Robotic Manipulator”, AAER-V8, pp. 167–174, May 2021.