“The Comfort of the Mystics: A Manual and Anthology of Early Sufism By Gerhard Böwering and Bilal Orfali (Leiden: Brill, 2013. 34 (English) + 686 (Arabic) pages.)” (2014) American Journal of Islam and Society, 31(3), pp. 149–152. doi:10.35632/ajis.v31i3.1066.