Singh, S., B. Murali Sundram, K. Rajendran, K. Boon Law, T. Aris, H. Ibrahim, S. Chandra Dass, and B. Singh Gill. “Forecasting Daily Confirmed COVID-19 Cases in Malaysia Using ARIMA Models”. The Journal of Infection in Developing Countries, Vol. 14, no. 09, Sept. 2020, pp. 971-6, doi:10.3855/jidc.13116.