(3GdJHQ(B: (3QhGjI (B/ s - (3GHQGgje Gdchfis ([S.N] : (3GdOGQ GdLeGgjQjI ddfTQ hGdJhRjY hGdGYdGf , s, 1991)
Keywords: (3GdGOH GdYQHis; (3GdbUU GdYQHjIs; (3GdQhGjGJ GdYQHjIs