COST CLASSIFICATION AND COST MANAGEMENT PRACTICES IN FOOD AND BEVERAGE MSMEs IN MEDAN: A LITERATURE-BASED APPLICATION. International Journal of Economics and Financial Issues, [S. l.], v. 16, n. 1, 2026. Disponível em: https://ijefijournal.com/index.php/ijefi/article/view/119. Acesso em: 26 oct. 2026.