(3GdEOGQI HGdCgOGa (B: s (3GdfXQjI h GdJWHjb (B/ s - (3YHO GdhgGH, Ydj eMeOs ((3GdbGgQI (B:s (3ecJHI ZQjH,s, 1984)
Keywords: (3GdEOGQIs; (3JbfjGJ GdEOGQIs; (3GdadSaIs; (3GdfXQjGJs