References:

Aitchison, J. W. & Carter, H. 1994. A geography of the Welsh language 1961-1991. University of Wales Press.

Ball, M. J. 1989. The transcription of suprasegmentals in Welsh. Journal of the International Phonetic Association 19(2), pp. 89-96.

Coupland, N. 1988. Dialect in use: Sociolinguistic variation in Cardiff English. Cardiff: University of Wales Press.

Ellis, R. 2008. The study of second language acquisition. Oxford: Oxford University.

Mennen, I., Kelly, N., Mayr, R. & Morris, J. 2020. The Effects of Home Language and Bilingualism on the Realization of Lexical Stress in Welsh and Welsh English. Frontiers in Psychology 10(3038), pp. 1-17.

Office for National Statistics. 2022. Welsh language skills (speaking). Available: https://www.ons.gov.uk/datasets/TS033/editions/2021/versions/1/filter-outputs/9878b6df-891a-451c-8a62-de3e28a8b2ac#get-data [Accessed 24.04.2023].

Oftedal, M. 1969. "Word Tones" in Welsh? In: Tilegnet, I.C.H. eds. Borgstrøm et Festskrift På 60-Årstagen.  Olso: Universitetsforlaget, pp. 119-127.

Rees, I. W. & Morris, J. 2018. Astudiaeth o ganfyddiadau tiwtoriaid Cymraeg i Oedolion o anawsterau ynganu ymhlith dysgwyr yr iaith. Gwerddon 27, pp. 39-66.

Thomas, A. 1984. Welsh English. Yn: Trudgill, P. eds. Language in the British Isles.  Cambridge: Cambridge University Press, pp. 178-194.

Thomas, A. R. 1997. The Welshness of Welsh English: a survey paper. In: Tristram, H. ed. The Celtic Englishes. Rhif. 4. Potsdam: Potsdam University Press., pp. 55-85.

Trask, R. L. 1996. A Dictionary of Phonetics and Phonology. New York: Routledge.

Walters, J. R. 1999. A study of the segmental and suprasegmental phonology of Rhondda Valleys English. Traethawd PhD, University of Glamorgan.

Walters, J. R. 2001. English in Wales and a ‘Welsh Valleys’ accent. World Englishes 20(3), pp. 285-304.

Walters, J. R. 2003. On the intonation of a South Wales' Valleys accent'of English. Journal of the International Phonetic Association, pp. 211-238.

Webb, K. 2011. “The realisation of stress in Welsh English”, in Proceedings of the Paper presented at the 17th International Congress of Phonetic Sciences, (Hong Kong: Hong Kong Convention and Exhibition Centre).

Williams, B. 1983. Stress in modern Welsh. PhD Thesis, University of Cambridge.

Williams, B. 1985. Pitch and duration in Welsh stress perception: The implications for intonation. Journal of Phonetics 13(4), pp. 381-406.