GAFFAR ALI, Abdelrahim Mutwakel.
Publishing in the Digital Era: Open Access Journals Model.
Gezira Journal of Health Sciences, [S.l.], v. 13, n. 1, june 2017.
ISSN 1810-5386. Available at: <http://37.60.236.48/index.php/gjhs/article/view/63>. Date accessed: 03 june 2026.