غزال ع. س. The Role of Strategic Planning in promoting six-sigma Technology A Reconnaissance Study in North Oil Company: العربية. Journal of Petroleum Research and Studies, [S. l.], v. 12, n. 4, p. 1-26, 2022. DOI: 10.52716/jprs.v12i4.524. Disponível em: https://jprs.gov.iq/index.php/jprs/article/view/524. Acesso em: 25 apr. 2024.