Karamustafa, Ahmet T God's unruly friends : dervish groups in the Islamic later middle period, 1200-1550 Ahmet T. Karamustafa - Salt Lake City University of Utah Press 2006 - x, 159 p. : ill. ; 24 cm Includes bibliographical references (p. 137-153) and index ISBN: 9781851684601 Subjects--Topical Terms: Dervishes - History Dewey Class. No.: 297.65 KAR