Marketing Spending to Firm Value: A Systematic Literature Review of Brand Equity as a Strategic Mechanism in Pharmaceutical Firms. International Journal of Economics and Financial Issues, [S. l.], v. 16, n. 1, 2026. DOI: https://doi.cibangsa.org/DOI-2026-352. Disponível em: https://ijefijournal.com/index.php/ijefi/article/view/109. Acesso em: 26 oct. 2026.