Prastyo, D. D., Akbar, M. S., & Otok, B. W. (2008). FUZZY MODELING APPROACH AND GLOBAL OPTIMIZATION FOR DUAL RESPONSE SURFACE. Jurnal Teknik Industri: Jurnal Keilmuan Dan Aplikasi Teknik Industri, 9(2), 102-111. https://doi.org/10.9744/jti.9.2.102-111