حسين ذ. ا. ج. .; شاهين د. ن. ص. م. . Measurement of Application Gap of Energy Management System According to The Standard ISO 50001:2011/ Case Study in North Oil Company. Journal of Petroleum Research and Studies, [S. l.], v. 9, n. 4, p. 1-22, 2019. DOI: 10.52716/jprs.v9i4.317. Disponível em: https://jprs.gov.iq/index.php/jprs/article/view/317. Acesso em: 4 may. 2024.