Hutasoit, D. R., and Rosalinda Septiani Sitompul. “Analysis of Raw Material Inventory on the Sale of Hand Woven Gloves at UD. Ulos Tarutung Twins”. Jurnal Mantik, vol. 4, no. 4, Feb. 2021, pp. 2499-04, doi:10.35335/mantik.Vol4.2021.1199.pp2499-2504.