ʻUlā Muḥammad Khawājah

• Dawr niẓām al-taʻlīm wa-al-tadrīb al-mihanī fī al-nuhūḍ bi-al-ʻimālah al-ʻArabīyah fī duwal Majlis al-Taʻāwun al-Khalījī
• Dawr niẓām al-taʻlīm wa-al-tadrīb al-mihnī fī al-nuhūḍ bi-al-ʻimālah al-ʻArabīyah fī duwal Majlis al-taʻāwun al-Khalījī