Sejiny, Prof,Dr.M.J. <br/><br/>
Journal of King Abdul Aziz University, Science 

 - Jeddah: Scientific Publishing Centre,K.A.U 
 -  Page-115 
<br/><br/><label>ISBN: </label>1319-1012 
<br/><br/><label>Dewey Class. No.: </label>574.072/S463k