Russia) Mezhdunarodnyĭ i︠u︡bileĭnyĭ simpozium "Aktualʹnye problemy nauki i obrazovanii︠a︡" (2003 Penza

Books by Russia) Mezhdunarodnyĭ i︠u︡bileĭnyĭ simpozium "Aktualʹnye problemy nauki i obrazovanii︠a︡" (2003 Penza on BookTides.