(3GdWbS hGdefGN OQGSI ai WHjYI GdLh hLZQGajI GdefGN (B/ s - (3agei gdGdi gdGdi GHh GdYWGs ([S.N] : (3OGQ GdeYQaI GdLGeYjI , s, 1991)
Keywords: (3GdLZQGajG GdWHjYjIs; (3GdefGNs; (3GdWbSs