ADE ELZA SURACHMAN. PENGARUH BIAYA OPERASIONAL DAN BIAYA PROMOSI TERHADAP VOLUME PENJUALAN. CEMERLANG : Jurnal Manajemen dan Ekonomi Bisnis, [S. l.], v. 2, n. 2, p. 79–90, 2022. DOI: 10.55606/cemerlang.v2i2.280. Disponível em: https://prin.or.id/index.php/cemerlang/article/view/280. Acesso em: 28 feb. 2026.