Topbas, Osman Nuri. <br/><br/>
Sufism :  a path towards the internalization of faith (Ihsan) / 
Osman Nuri Topbas. 
 - Istanbul :  Erkam Publications,  2011 
 - 552 p. ;  24 cm. 
<br/><br/>Bibliography : p. 541-546 
<br/><br/><label>ISBN: </label>9789944833639  Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sufism