Usus al-daʻwah wa-ādāb al-duʻāh
By: Muḥammad al-Sayyid al-Wakīl.
Publisher: Dār al-Ṭibāʻah wa-al-Nashr al-Islāmīyah
Published: 1979
Place of publication: al-Qāhirah
Language: ara
Number of pages: 110