Adams, Samuel Olorunfemi, and Godwin Somto. “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 10, no. 1 (June 23, 2022): 43–53. Accessed May 3, 2024. https://archive.conscientiabeam.com/index.php/63/article/view/3031.