علي خير صابر و حافظ ابوبكر امحمد و نوارة محمد الفيتوري. Using Statistical Quality Control Charts for Measuring Educational Service Quality at Sebha University from the Viewpoint of Students. Journal of Pure & Applied Sciences , [S. l.], v. 18, n. 4, 2019. DOI: 10.51984/jopas.v18i4.432. Disponível em: https://sebhau.edu.ly/journal/jopas/article/view/432. Acesso em: 5 may. 2024.