Faris Ku Yusoff, T. A., M. F. Atan, N. Abdul Rahman, S. F. Salleh, and N. A. Wahab. “Optimization of PID Tuning Using Genetic Algorithm”. Journal of Applied Science & Process Engineering, Vol. 2, no. 2, Sept. 2015, pp. 97-106, doi:10.33736/jaspe.168.2015.