Quality engineering of crumb rubber by minimizing rework using fuzzy FMEAKhalida Syahputri, Jelly Leviza, Rahmi M Sari, T Indah Rizkya, Ikhsan Siregar and Mangara M TambunanMATEC Web Conf., 197 (2018) 14007DOI: https://doi.org/10.1051/matecconf/201819714007