ONUORAH ANASTASIA, C.; EHIEDU VICTOR, C.; EZEKIEL, O. COVID-19 crisis and stock market volatility in Nigeria: A GARCH model approach. International research journal of management, IT and social sciences, [S. l.], v. 9, n. 3, p. 317–327, 2022. DOI: 10.21744/irjmis.v9n3.2081. Disponível em: https://sloap.org/journals/index.php/irjmis/article/view/2081. Acesso em: 28 apr. 2026.