参考資料

https://en.wikipedia.org/wiki/Rhotic_and_non-rhotic_accents

https://www.excite.co.jp/dictionary/english_japanese/

https://en.wikipedia.org/wiki/American_English

http://www.bbc.co.uk/news/magazine-14201796

http://grammar.about.com/od/ab/g/Americanismterm.htm

http://grammarist.com/usage/autumn-fall/

https://en.wikipedia.org/wiki/British_English

https://en.wikipedia.org/wiki/English_language_in_England

https://en.wikipedia.org/wiki/List_of_dialects_of_the_English_language

https://en.wikipedia.org/wiki/Received_Pronunciation

https://en.wikipedia.org/wiki/Oxford_spelling

https://www.youtube.com/watch?v=OiljTaop-pQ

http://news.uk.msn.com/uk/accent-associated-with-hard-work-70

https://www.phon.ucl.ac.uk/home/estuary/sellars.htm

https://en.wikipedia.org/wiki/Cockney#Cockney_speech

http://www.youtube.com/watch?v=MJr9SSJKkII

https://en.wikipedia.org/wiki/Estuary_English

http://www.youtube.com/watch?v=52trwsDoj_8

http://public.oed.com/aspects-of-english/english-in-use/canadian-english/

https://en.wikipedia.org/wiki/Canada

https://en.wikipedia.org/wiki/Canadian_English

https://en.wikipedia.org/wiki/Australian_English

http://www15.uta.fi/FAST/US1/REF/aust-eng.html

http://www.sunburntcountry.au.com/sayings/rhyme.html

http://goaustralia.about.com/cs/language/a/rhymingslang.htm

https://en.wikipedia.org/wiki/New_Zealand_English

https://en.wiktionary.org/wiki/Appendix:New_Zealand_English_vocabulary

https://en.wikipedia.org/wiki/Maori_influence_on_New_Zealand_English

https://www.chemistry.co.nz/kiwi.htm

https://www.newzealandslang.com/

https://en.wikipedia.org/wiki/University_of_Otago

https://en.wikipedia.org/wiki/Scottish_English

http://www.scots-online.org/grammar/sse.htm

https://en.wikipedia.org/wiki/Scotty_(Star_Trek)

https://en.wikipedia.org/wiki/History_of_the_Scots_language

https://en.wikipedia.org/wiki/Scotticism

https://www.wikihow.com/Talk-With-a-Scottish-Accent

http://www.youtube.com/watch?v=mALkCGVA2BU

https://en.wikipedia.org/wiki/Hiberno-English

http://www.wikihow.com/Speak-With-an-Irish-Accent

http://www.fluentin3months.com/speak-like-the-irish/

https://www.uni-due.de/IERC/index.html

http://www.examiner.com/article/how-to-talk-like-an-irish-person-lesson-one

http://www.youtube.com/watch?v=W2PHch4IPPQ

http://abitirish.tumblr.com/post/30621748487/twas-himself-that-was-in-it

https://en.wikipedia.org/wiki/Welsh_English

http://www.bl.uk/learning/langlit/sounds/find-out-more/wales/

http://www.bl.uk/learning/langlit/sounds/text-only/wales/aberhosan/

http://www.youtube.com/watch?v=cq-mEejECcU

http://blog.oxforddictionaries.com/2012/03/the-beauty-of-welsh-english/

http://homes.chass.utoronto.ca/~cpercy/courses/6362-martin.htm

https://en.wikipedia.org/wiki/Wales

https://en.wikipedia.org/wiki/Prince_of_Wales

http://www.reddit.com/r/Wales/comments/172pgo/today_i_learned_that_the_phrase_buttbutty/

https://www.youtube.com/watch?v=3NEsuxYkvIQ