AHMED, Z. Analyzing Time Series, Forecasting Future Revenues and Expenditures - An Analytical Study of the Data of A Sample of Telecommunications Companies for the Period (2012-2021). TANMIYAT AL-RAFIDAIN, [S. l.], v. 42, n. 139, p. 308–326, 2023. DOI: 10.33899/tanra.2023.180490.1292. Disponível em: https://tanmiyat.uomosul.edu.iq/index.php/tanmiyat/article/view/29493. Acesso em: 7 sep. 2025.