(3GJLGgGJ GdTYQ GdYQHi ai GdbQf GdKGfi GdgLQi (B/ s - (3eMeO eUWai gOGQIs ([S.N] : (3OGQ GdYdhe GdYQHjI , s, 1988)
Keywords: (3GdTYQ GdYQHis; (3JGQjN hfbOs