MEASUREMENT OF WORKING TIME IN THE PRODUCTION PROCESS ”KERUPUK IKAN”IN GRESIK HOME INDUSTRY: MEASUREMENT OF WORKING TIME IN THE PRODUCTION PROCESS ”KERUPUK IKAN”IN GRESIK HOME INDUSTRY. (2018). Tibuana : Journal of Applied Industrial Engineering, 1(1), 20-23. https://doi.org/10.36456/tibuana.1.1.1586.20-23