Michael Philip Penn, When Christians first met Muslims : a sourcebook of the earliest Syriac writings on Islam, Oakland, University of California Press, 2015, XIX-254 p. and Michael Philip Penn, Envisioning Islam : Syriac Christians and the early Muslim world (Divinations : rereading late ancient religion), Philadelphia, University of Pennsylvania Press, 2015, 294 p.

Michael Philip Penn, When Christians first met Muslims : a sourcebook of the earliest Syriac writings on Islam, Oakland, University of California Press, 2015, XIX-254 p. and Michael Philip Penn, Envisioning Islam : Syriac Christians and the early Muslim world (Divinations : rereading late ancient religion), Philadelphia, University of Pennsylvania Press, 2015, 294 p., Page 1 of 1