Maintenance Administration System of Electrical Instruments. Journal of Education and Science, [S. l.], v. 22, n. 3, p. 150–161, 2009. DOI: 10.33899/edusj.2009.57774. Disponível em: https://edusj.uomosul.edu.iq/index.php/edusj/article/view/42333. Acesso em: 14 aug. 2026.