(3Odjd GdGOH GdJhfSi GdeJQLe(B: (3GdbSe GdGhd(B, (3GdGHOGY (B/ s - (3YHOGdhgGH GdONdis ([S.N] : (3GdeDSSI GdhWfjI ddJQLeI hGdJMbjb , s, 1990)
Keywords: (3JhfSs; (3GdGOdIs; (3GdGOH GdJhfSi GdeJQLes