(3GdNha ef GdeWQ (B/ s - (3YHOGddWja YHOGdMdjes ([S.N] : (3GdeLdS GdGYdi dQYGjI Gdafhf hGdGOGH , s, 1974)
Keywords: (3GdTYQ GdYQHis; (3GdYUQ GdMOjKs; (3OhGhjf hbUGFOs