Fishman, 1977, p. 319. Fishman, Joshua (1977), "Standard" versus "Dialect" in Bilingual Education: An Old Problem in a New Context, The Modern Language Journal, 61 (7): 315–325, doi:10.2307/324550, JSTOR324550
Roach, 2004, pp. 240–241. Roach, Peter (2004), British English: Received Pronunciation, Journal of the International Phonetic Association, 34 (2): 239–245, doi:10.1017/S0025100304001768
Roach, 2004, p. 241. Roach, Peter (2004), British English: Received Pronunciation, Journal of the International Phonetic Association, 34 (2): 239–245, doi:10.1017/S0025100304001768
Roach, 2004, p. 240. Roach, Peter (2004), British English: Received Pronunciation, Journal of the International Phonetic Association, 34 (2): 239–245, doi:10.1017/S0025100304001768
Roach, 2004, pp. 241, 243. Roach, Peter (2004), British English: Received Pronunciation, Journal of the International Phonetic Association, 34 (2): 239–245, doi:10.1017/S0025100304001768
Wikström, 2013, p. 45. Wikström, Jussi (2013), An acoustic study of the RP English LOT and THOUGHT vowels, Journal of the International Phonetic Association, 43 (1): 37–47, doi:10.1017/S0025100312000345
Fishman, 1977, p. 319. Fishman, Joshua (1977), "Standard" versus "Dialect" in Bilingual Education: An Old Problem in a New Context, The Modern Language Journal, 61 (7): 315–325, doi:10.2307/324550, JSTOR324550