CVIJANOVIC, D.; MIHAILOVIC, B.; NIKOLIC, A. Market Research and Marketing Information Systems. International Journal of Economic Practices and Theories, [S. l.], v. 4, n. 2, p. 191-198, 2014. Disponível em: http://inscriere.excelis.ase.ro/index.php/ijept/article/view/Market_Research_and_Marketing_Information_Systems. Acesso em: 26 jul. 2026.