Setiawan, Fachruddin Ari, et al. “PID-Based Motion Control of a Differential Drive Robot: A Simulation Study in CoppeliaSim”. Indonesian Journal of Engineering and Technology (INAJET), vol. 8, no. 2, Feb. 2026, pp. 1-8, doi:10.26740/inajet.v8n2.p1-8.