Citation
Duʿbus, Muḥammad Yusrī Ibrāhīm. Al-Talawwuth al-Ijtimāʿī wa-l-Thaqāfī wa-l-Wiqāya Minh. Alexandria: al-Bīṭāsh Sintir li-l-Nashr wa-l-Tawzīʿ, 2000.
Duʿbus, Muḥammad Yusrī Ibrāhīm. Al-Talawwuth al-Ijtimāʿī wa-l-Thaqāfī wa-l-Wiqāya Minh. Alexandria: al-Bīṭāsh Sintir li-l-Nashr wa-l-Tawzīʿ, 2000.