Nguyen, T.S., Hoang, N.H. and Bin Hussein, M.A. 2025. Setpoint Tracking-Error Control Design for Stabilization of Quadruple-Tank Process With Time Delay Using a Relaxing Port-Hamiltonian Formulation . Journal of Technical Education Science. 20, 04 (Nov. 2025), 97–107. DOI:https://doi.org/10.54644/jte.2025.2021.