Джерела

URL:http://progressiya.blogspot.com/

URL:http://formula.co.ua/blog/pro-chysla-fibonachchi/

URL: https://www.youtube.com/watch?v=dhc5f7t-2pI

URL:https://www.youtube.com/watch?v=0uAHHdG991Q

URL:https://www.youtube.com/watch?v=6iZBqL5Wqz0

URL:https://www.youtube.com/watch?v=ZTbH7Jj2uGY

URL:https://www.youtube.com/watch?v=H02amoJg0eM