Prastyo, D. D., M. S. Akbar, and B. W. Otok. “FUZZY MODELING APPROACH AND GLOBAL OPTIMIZATION FOR DUAL RESPONSE SURFACE”. Jurnal Teknik Industri: Jurnal Keilmuan Dan Aplikasi Teknik Industri, vol. 9, no. 2, Jan. 2008, pp. 102-11, doi:10.9744/jti.9.2.102-111.