Citation
Khuḍr, Muḥammad ʿUthmān. Dirāsa Istikshāfiyya li-l-Qiyādāt al-Rīfiyya al-Maḥalliyya wa li-Dawrihā fī al-ʿAmal al-Zirāʿī bi-Qaryat al-Khāfura li-Mashrūʿ Marra al-Zirāʿī markaz Sunār bi-Mudīriyyat al-Nīl al-Azraq fī Jumhūriyyat al-Sūdān al-Dīmūqrātiyya. Alexandria: Jāmiʿat al-Iskandariyya, 1973.