Hossain, Zakir, Atikur Rahman, Moyazzem Hossain, and Jamil Hasan Karami. “Over-Differencing and Forecasting With Non-Stationary Time Series Data”. Dhaka University Journal of Science 67, no. 1 (January 30, 2019): 21–26. Accessed November 21, 2024. https://banglajol.info/index.php/DUJS/article/view/54568.