UlfahM., and KulsumK. “WASTE MINIMISATION ON PRODUCTION PROCESSES OF BOTTLED DRINKING WATER USING GREEN LEAN SIX SIGMA APPROACH”. Jurnal Teknologi Industri Pertanian, Vol. 32, no. 1, Apr. 2022, pp. 40-49, doi:10.24961/j.tek.ind.pert.2022.32.1.40.