al-Razi, Fakhr al-Din Muhammad ibn'Umar,  1149 or 50-1210 <br/><br/>
al-Masa'il al-khamsun fi usul al-din Masa'il al-khamsun fi usul al-din 

 - Beirut :  Dar al-Jil,  1990 
<br/><br/><label>ISBN: </label> RM8.50