Carbonell, Joan F.; Llisterri, Joaquim (1992), "Catalan", Journal of the International Phonetic Association, 22 (1–2): 53–56
Cox, Felicity; Palethorpe, Sallyanne (2007), "Australian English", Journal of the International Phonetic Association, 37 (3): 341–349
Cruz-Ferreira, Madalena (1995), "European Portuguese", Journal of the International Phonetic Association, 25 (2): 90–94
Martínez-Celdrán, Eugenio; Fernández-Planas, Ana Ma.; Carrera-Sabaté, Josefina (2003), "Castilian Spanish", Journal of the International Phonetic Association, 33 (2): 255–259
Merrill, Elizabeth (2008), "Tilquiapan Zapotec", Journal of the International Phonetic Association, 38 (1): 107–114
Watson, Janet (2002). The Phonology and Morphology of Arabic. New York: Oxford University Press.
Watson, Kevin (2007), "Liverpool English", Journal of the International Phonetic Association, 37 (3): 351–360