Affa, M. N., and B. I. Putra. “Analisis Manual Material Handling Pada Pekerja Borongan Di PT. JC Dengan Metode NBM Dan RWL”. PROZIMA (Productivity, Optimization and Manufacturing System Engineering), Vol. 1, no. 1, June 2017, pp. 22-32, doi:10.21070/prozima.v1i1.703.