Nicholson, Reynold Alleyne,  1868-1945, <br/><br/>
The mystics of Islam 
by Reynold A. Nicholson. 
 - London  Routledge & Kegan Paul  1963. 
 - viii, 178 pages ; 19 cm. 
<br/><br/> terbitan asal 1914 
<br/><br/>p. 169-171. 
<br/><br/><label>ISBN: </label>0710018924 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mysticism--Islam.<br/>Sufism.