(3GdbhGfjf dGadGWhf (B/s - (3JjdhQs; (3eMeO MSf XGXG (B((3eJQLe(B)s ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1986)
Keywords: (3GdadSaIs; (3GdadSaI GdjhfGfjIs; (3GadGWhfs; (3GdadSaI GdbOjeIs