al-Tajassus wa-ṣāḥib al-khabar fī al-ʻaṣr al-ʻAbbāsī
By: taʼlīf Nisrīn Maḥmūd ʻAlī
Edition: al-Ṭabʻah 1
Publisher: al-Dār al-ʻArabīyah lil-Mawsūʻāt
Published: 2010
Place of publication: Bayrūt
Language: ara
Number of pages: 240
Subjects: Intelligence service; Postal service; Espionage; History