LOGAN, J.; BHARRATHSINGH, K. Acoustic and phonological factors in the perception of English /r/ and /l/ by Japanese listeners. Canadian Acoustics, [S. l.], v. 22, n. 3, p. 141–148, 1994. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/889. Acesso em: 7 dec. 2021.