ARYANI SAIRUN; SUGITO. Effectiveness of Using Economic Analysis in Managing Digital Marketing Campaigns: A Study in the Service Industry. Outline Journal of Economic Studies, [S. l.], v. 4, n. 2, p. 138–145, 2025. DOI: 10.61730/wsyrw583. Disponível em: https://journal.outlinepublisher.com/index.php/OJES/article/view/471. Acesso em: 14 sep. 2025.