ADITAMA, Dhimas; NURAINUN, Tengku; LUBIS, Fitriani Surayya; NOFIRZA, Nofirza; ANWARDI, Anwardi. Controlling the Inventory of Boiler Ash Raw Materials in Organic Fertilizer Using the Minmax Method (Case Study: UMTR Belilas Organic Fertilizer). IJIEM - Indonesian Journal of Industrial Engineering and Management, Jakarta, Indonesia, v. 7, n. 1, p. 14–22, 2026. DOI: 10.22441/ijiem.v7i1.31728. Disponível em: https://training-ojs3-publikasi.mercubuana.ac.id/index.php/ijiem/article/view/31728. Acesso em: 28 may. 2026.