GHAITH, Sadina Gabriel; ALI DAKHIL, Dakhil; SAEED, Hussein Salem. Requirements for implementing the Six Sigma methodology to improve the quality of operations in Libyan higher education institutions. Al-Mukhtar Journal of Social Sciences, [S. l.], v. 43, n. 1, p. 129–148, 2025. DOI: 10.54172/zpma4k71. Disponível em: https://mdp.omu.edu.ly/journals/index.php/mjssc/article/view/1405. Acesso em: 10 dec. 2025.