RIZIQ AGSYAH; FAUZI ARIF LUBIS; RAHMAT DAIM HARAHAP. Analysis of Management Accounting Use of Raw Material Management and Implementation of EMKM SAK in UMKM Sir Coffe Roasters Marelan. Journal Informatic, Education and Management (JIEM), v. 8, n. 1, p. 852-865, 21 Jan. 2026.