Vlok, P.J., and C.J. Fourie. “A CASE STUDY ON MAXIMISING THE PROFITABILITY OF A FORM FILL AND SEAL MACHINE BY OPTIMISING INTERRUPTION INTERVALS”. The South African Journal of Industrial Engineering 21, no. 1 (November 5, 2011). Accessed April 28, 2024. https://sajie.journals.ac.za/pub/article/view/76.