Ahmad Lutfi, N. ‘Amirah F. N.; Atan, M. F.; Rahman, N. A.; Salleh, S. F.; Abdul Wahab, N. Study on Mathematical on Mathematical Model in Simulating Cymbopogon Winterianus Essential Oil Extraction by Steam Distillation. J. Appl. Sci. Process Eng. 2016, 3, 1-16.