Ismaili Heresiography: The "Bab al - Shaytan" From Abu Tammam's Kitab al - Shajara,/ By Wilferd Modelung and Paul E. Walker,کتاب های / By Wilferd Modelung and Paul E. Walker,کتاب Abu Tammam, Habib Ibn Aws al - Ta'i, 808-842 Kitab al Shajara,Ismailites - Doctrines - Early Works to 1800,Abu Tammam, Habib Ibn Aws al - Ta'i, 808-842 Kitab al Shajara,Ismailites - Doctrines - Early Works to 1800" />