Джерела

URL: https://uk.wikipedia.org/wiki/%D0%9F%D0%BE%D0%B2%D0%B5%D1%80%D1%85%D0%BD%D0%B5%D0%B2%D0%B8%D0%B9_%D0%BD%D0%B0%D1%82%D1%8F%D0%B3

URL:https://disted.edu.vn.ua/courses/learn/3803

URL:https://uk.wikipedia.org/wiki/%D0%97%D0%BC%D0%BE%D1%87%D1%83%D0%B2%D0%B0%D0%BD%D0%BD%D1%8F

URL:https://studfiles.net/preview/4267212/page:12/

URL:https://uk.wikipedia.org/wiki/%D0%9A%D0%B0%D0%BF%D1%96%D0%BB%D1%8F
%D1%80%D0%BD%D0%B8%D0%B9_%D0%B5%D1%84%D0%B5%D0%BA%D1%82

URL:https://studfiles.net/preview/5120779/page:17/

URL:https://www.youtube.com/watch?v=8MZfBPKBK7Y

URL:https://www.youtube.com/watch?v=rERYf76Aue4

URL:https://www.youtube.com/watch?v=c6-qRmYDf54

URL:https://www.youtube.com/watch?v=2JaQSQHclk0&t=21s