Ilembo, Bahati, and Rahimu Kassim. “The Power of First Differencing in Addressing Non Stationarity Time Series: Empirical Evidence from Price of Rice Using SARIMA Model, Tanzania”. Eastern Africa Journal of Contemporary Research 5, no. 1 (April 4, 2025): 53–69. Accessed April 19, 2025. https://eajcr.org/index.php/eajcr/article/view/63.