Maddieson, I., & Wright, R. (1995). The vowels and consonants of Amis: A preliminary phonetic report. In I. Maddieson (Ed.), UCLA working papers in phonetics: Fieldwork studies of targeted languages III (No. 91, pp. 45–66). Los Angeles: The UCLA Phonetics Laboratory Group. (in pdf) (页面存档备份,存于互联网档案馆)
Maddieson, I., & Wright, R. (1995). The vowels and consonants of Amis: A preliminary phonetic report. In I. Maddieson (Ed.), UCLA working papers in phonetics: Fieldwork studies of targeted languages III (No. 91, pp. 45–66). Los Angeles: The UCLA Phonetics Laboratory Group. (in pdf)(页面存档备份,存于互联网档案馆)
^Kodzasov, S. V. Pharyngeal Features in the Daghestan Languages. Proceedings of the Eleventh International Congress of Phonetic Sciences (Tallinn, Estonia, Aug 1-7 1987).
^John Esling (2010) "Phonetic Notation", in Hardcastle, Laver & Gibbon (eds) The Handbook of Phonetic Sciences, 2nd ed., p 695. The reference "Esling, 1999" is to "The iPA categories 'pharyngeal' and 'epiglottal': laryngoscopic observations of the pharyngeal articulations and larynx height." Language and Speech, 42, 349–372.