IR.OMRY PANGARIBUAN, MM. PENGARUH BIAYA PROMOSI DAN BIAYA DISTRIBUSI TERHADAP VOLUME PENJUALAN. Jurnal Sains dan Teknologi ISTP, [S. l.], v. 13, n. 1, p. 1–9, 2021. DOI: 10.59637/jsti.v13i1.37. Disponível em: https://ejurnal.istp.ac.id/index.php/jsti/article/view/37. Acesso em: 24 jul. 2025.