(3GdHfjI GdTYQjI YfO aGQhb ThTg (B/ s - (3eUWai YHOGdZfis ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1992)
Keywords: (3GdTYQ GdYQHis; (3GdGOH GdYQHis; (3GdQeRjI ai GdGOH GdYQHis