Baharuddin, N. Q., L. Sukarma, and E. Mohamad. “MINIMIZING NUMBER OF DEFECTS IN NICKEL PLATING PROCESS USING FACTORIAL DESIGN”. Journal of Advanced Manufacturing Technology (JAMT), Vol. 10, no. 1, July 2016, pp. 95-06, https://jamt.utem.edu.my/jamt/article/view/643.