ABU ZAROUR, . B. The Halloween Effect Anomaly: Evidence from Some Arab Countries Equity Markets. Studies in Business and Economics, [S. l.], v. 13, n. 1, 2007. DOI: 10.29117/sbe.2007.0031. Disponível em: https://journals.qu.edu.qa/index.php/SBE/article/view/737. Acesso em: 23 jan. 2022.