Nainggolan, I.V. and Siagian, E.M. 2020. The Analysis of Proper Raw Material Inventory Control to Increase Sales Results in the Home Industry of Sihobuk Martabe Tarutung Beans. Jurnal Mantik. 4, 3 (Nov. 2020), 1831-1836. DOI:https://doi.org/10.35335/mantik.Vol4.2020.1018.pp1831-1836.