Źródła

https://www.dialectsarchive.com

http://dialectblog.com/british-accents/

https://www.youtube.com/watch?v=nDdRHWHzwR4

https://www.youtube.com/watch?v=vj7o0AAfM1U

https://www.youtube.com/watch?v=bxoFem-5BKY