Muḥammad al-Shaykh ʻUmar

• al- ʻAlāqah al-taʾjīrīyah bayna al-iṭlāq wa-al-taqyīd wa-taṭbīqātihā fī al-Mamlakah al-ʻArabīyah al-Suʻūdīyah
• al-Milkīyah
• Qānūn al-ijrāʼāt al-madanīyah al-Sūdānī
• Qānūn ījār al-mabānī li-sanat 1991