دميان ف. تحديد الايرادات. Dirasat in Economics and Business , [S. l.], v. 10, n. 2, 2022. DOI: 10.37376/deb.v10i2.1421. Disponível em: https://journals.uob.edu.ly/index.php/DEB/article/view/1421. Acesso em: 5 jun. 2026.