(3GdebGdGJ GdZGVHI QCi ef dG QCi dge (B/ s - (3fHjd NhQis ([S.N] : (3QjGV GdQjS ddcJH hGdfTQ , s, 1993)
Keywords: (3GdGOH GdYQHis; (3GdebGdGJ GdYQHjIs; (3GdeLehYGJs