AL-MUHTADY, M. The Importance of Using the Barcode Mechanism in Increasing Proficiency Work in Selling Products" An Application Study in the Direct Sale Show in Mosul City university’. TANMIYAT AL-RAFIDAIN, [S. l.], v. 31, n. 93, p. 246–277, 2009. DOI: 10.33899/tanra.2009.161838. Disponível em: https://edusj.uomosul.edu.iq/index.php/tanmiyat/article/view/29585. Acesso em: 10 sep. 2025.