Citation
ʿUthmān, Aḥmad ʿAbd al-Raḥmān Ibrāhīm. Baʿḍ Asālīb al-Muʿāmala al-Wālidiyya Fī al-Tanshiʾa al-Ijtimāʿiyya wa-ʿAlāqatuhā bi-Mawḍūʿ al-Ḍabṭ Ladā al-Abnāʾ. Zagazig: Jāmiʿat al-Zaqāzīq, 1986.
ʿUthmān, Aḥmad ʿAbd al-Raḥmān Ibrāhīm. Baʿḍ Asālīb al-Muʿāmala al-Wālidiyya Fī al-Tanshiʾa al-Ijtimāʿiyya wa-ʿAlāqatuhā bi-Mawḍūʿ al-Ḍabṭ Ladā al-Abnāʾ. Zagazig: Jāmiʿat al-Zaqāzīq, 1986.