Munandar, A. and Darmawan, I. (2024) “COMPARATIVE STUDY OF GROSS PROFIT MARGIN AND NET PROFIT MARGIN AT THE TOBACCO COMPANIES PT GUDANG GARAM TBK AND PT HM SAMPOERNA TBK”, Jurnal PenKoMi : Kajian Pendidikan dan Ekonomi, 7(2), pp. 45-53. doi: 10.33627/pk.v7i2.1949.