ZALAT, mohamed. Front Matter. Studies in Business and Economics (SBE), [S. l.], v. 13, n. 1, 2019. DOI: 10.29117/sbe.2007.0025. Disponível em: https://journals.qu.edu.qa/index.php/SBE/article/view/732. Acesso em: 9 jan. 2026.