SALIH, Hameed Ali. Quality circles role in the diagno sing defects and their impact on product quality Case Study on Saloon Car production plant. Tikrit Journal of Administrative and Economic Sciences, [S. l.], v. 17, n. 56, 1, p. 258–281, 2021. DOI: 10.25130/tjaes.17.56.1.15. Disponível em: https://www.tjaes.org/index.php/tjaes/article/view/1439. Acesso em: 24 may. 2026.