(3GdbGYOI GdfMhjI (B: (3OQGSI JMdjdjI fbOjI (B/ s - (3GMeO YHOGdYXje YHOGdZfis ([S.N] : (3OGQ GdKbGaI ddfTQ hGdJhRjY , s, 1990)
Keywords: (3GdfMhs; (3GddZI GdYQHjIs