kazemi, کاظمی, souri, pourya, ghazanfari, mehdi, pishvaee, mir saman. “An Analysis on Stationarity of Consumer Price Index (CPI) Time Series in Iran and Using ARIMA Model to Forecast For a Future Time Period.” Modiriat-e- farda, vol. 17, no. 54, 2018, pp. 141-162.