Pakhare, A. et al. 2026. Optimal PID Level Control of a Nonlinear Spherical Tank Using a Hybrid WOA–GA Optimization Approach. Journal of Automation, Mobile Robotics and Intelligent Systems. 20, 3 (Sep. 2026), 26–35. DOI:https://doi.org/10.14313/JAMRIS-2026-035.