https://www.youtube.com/watch?v=Y0KUX-xwAEw
Звідки брати ідеї https://ua.edufuture.biz/wpm/kejsi-dlya-serednoyi-ta-starshoyi-shkoli/kejs-urok-zvidki-brati-ideyi-dlya-uspishnogo-biznesu/
Шопинг основи https://ua.edufuture.biz/wpm/kejsi-dlya-serednoyi-ta-starshoyi-shkoli/kejs-urok-shoping-osnovi/