ლექცია

http://www.owasso.k12.ok.us/webpages/gyankey/files/31%20Years%20of%20Crisis,%201919-1939.pdf

http://www.owasso.k12.ok.us/webpages/gyankey/files/32%20World%20War%20II,%201939-1945.pdf


http://www.owasso.k12.ok.us/webpages/gyankey/files/33%20Restructuring%20the%20Postwar%20World,%201945-Present.pdf

http://www.owasso.k12.ok.us/webpages/gyankey/pictures.cfm?newSlideID=13604    ( მასწავლებლის საიტიდან. კარგი პოსტერებია  ე.ნ.)