MAHMOUD, B. I. The Marketing Information System and Its Importance in the Success of Proactive Marketing: Sistem Informasi Pemasaran dan Perannya dalam Kesuksesan Pemasaran Proaktif. Indonesian Journal of Law and Economics Review, [S. l.], v. 20, n. 4, p. 10.21070/ijler.v20i4.1465, 2025. DOI: 10.21070/ijler.v20i4.1465. Disponível em: https://ijler.umsida.ac.id/index.php/ijler/article/view/1465. Acesso em: 11 jan. 2026.