(3GdgGA ai GddZI GdYQHjI (B/ s - (3GMeO SdjeGf jGbhJs ([S.N] : (3OGQ GdeYQaI GdLGeYjI , s, 1989)
Keywords: (3GdfMhs; (3GdGUhGJ GddZhjIs; (3GdMQhas