Comparative Study of the Error Trend and Seasonal Exponential Smoothing and ARIMA Model using COVID-19 Death Rate in Nigeria . International Journal of Natural Sciences Research, [S. l.], v. 10, n. 1, p. 43–53, 2022. DOI: 10.18488/63.v10i1.3031. Disponível em: https://archive.conscientiabeam.com/index.php/63/article/view/3031. Acesso em: 5 aug. 2026.