BASHIR KHODAPARASTI, R. and MOSLEHI, S. (2014) “Application of the VARMA Model for Sales Forecast: Case of Urmia Gray Cement Factory”, Timisoara Journal of Economics and Business, 7(1), pp. 89-101. Available at: https://www.tjeb.ro/index.php/tjeb/article/view/TJEB7-1_89to101 (Accessed: 25February2021).