al-Ḍabṭ al-Ijtimāʿī Ghayr al-Rasmī bayn al-Imtithāl wa-l-Iinḥirāf

Citation

Muḥammad, Āmāl ʿAbd al-Ḥamīd. al-Ḍabṭ al-Ijtimāʿī Ghayr al-Rasmī bayn al-Imtithāl wa-l-Iinḥirāf. Cairo: Jāmiʿat ʿAyn Shams, 1991.