Spiers Edward M.(2005), Dervishes and Fanaticism: Perception and impact, in Hughes M. and Johnson G., Fanaticism and Conflict in the Modern Age, Cass Series—Military History and Policy. Available hereArxivləşdirilib 2016-03-10 at the Wayback Machine
Spiers Edward M.(2005), Dervishes and Fanaticism: Perception and impact, in Hughes M. and Johnson G., Fanaticism and Conflict in the Modern Age, Cass Series—Military History and Policy. Available hereArxivləşdirilib 2016-03-10 at the Wayback Machine