ETUK, E. H. A Seasonal Arima Model for Daily Nigerian Naira-Us Dollar Exchange Rates. Asian Journal of Empirical Research, [S. l.], v. 2, n. 6, p. 219–227, 2012. Disponível em: https://archive.aessweb.com/index.php/5004/article/view/2901. Acesso em: 3 jul. 2024.