الناصر عبد المجيد حمزة, and جمعة احلام احمد. “The Analysis of Time Series Considers One of the Mathematical and Statistical Methods in Explanation of the Nature Phenomena and Its Manner in a Specific Time Period”. Journal of Economics and Administrative Sciences 13, no. 48 (December 1, 2007): 251. Accessed April 24, 2025. https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/1228.