02 A-B https://youtu.be/4I_vf918O0s
02 Γ-Δ https://player.quizalize.com/quiz/fe246082-2025-44ec-ae77-90554ce11b4c?fbclid=IwAR0Ui7sP7ABy1tTKsH6vZEEND4WC63BMxMtU4hnGfKTMCZywcmiisfYV3IM
03 Α-Β https://youtu.be/98RTg4JR1zg
03 Γ-Δ https://youtu.be/OfPSDmq8JVE