A. Faizal, D. Mursyitah, E. Imaredah, and M. Ikhsyan, “ANALYSIS OF HYBRID CONTROL SLIDING MODE CONTROL AND PID CONTROL FOR CONCENTRATION ON ISOTHERMAL CONTINUOUS STIRRED TANK REACTOR (CSTR)”, JurnalEcotipe, vol. 5, no. 1, pp. 1-7, Apr. 2018.