Mahmoud Al-Hosni, Malak Adel Alsheikh, و Malak Meloud Elhasady. "Prevalence of Helicobacter Pylori Infection in Children and Adolescents". African Journal of Advanced Pure and Applied Sciences (AJAPAS), م 2, عدد 1, يناير، 2023, ص 28-38, https://aaasjournals.com/index.php/ajapas/article/view/209.