Marie, M.J., AL-Suhai, G.A. and Latif, W.A. 2015. PSO-based Optimal PID Controller for Twin Rotor MIMO System. INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY. 14, 5 (Mar. 2015), 5719–5730. DOI:https://doi.org/10.24297/ijct.v14i5.5272.