^In Sahidic dialect, it is [i], while, in Bohairic dialect, it is [e].
^The vowel /uː/ is commonly written with ⲟⲩ not ⲩ alone.
^The additional letter xai is Ⳉⳉ in Akhmimic and Ⳋⳋ in Bohairic, both for a velar fricative /x/.
^Some scholars constructed its pronunciation as [kʲ], while others as [tʃ].
^In Sahidic dialect, it is [ti], while in Bohairic dialect, it is [de].
註釋
^Ritner, Robert Kriech. 1996. "The Coptic Alphabet". In The World's Writing Systems, edited by Peter T. Daniels and William Bright. Oxford and New York: Oxford University Press. 1994:287–290.
Quaegebeur, Jan. 1982. "De la préhistoire de l'écriture copte." Orientalia lovaniensia analecta 13:125–136.
Kasser, Rodolphe. 1991. "Alphabet in Coptic, Greek". In The Coptic Encyclopedia, edited by Aziz S. Atiya. New York: Macmillan Publishing Company, Volume 8. 30–32.
Kasser, Rodolphe. 1991. "Alphabets, Coptic". In The Coptic Encyclopedia, edited by Aziz S. Atiya. New York: Macmillan Publishing Company, Volume 8. 32–41.
Kasser, Rodolphe. 1991. "Alphabets, Old Coptic". In The Coptic Encyclopedia, edited by Aziz S. Atiya. New York: Macmillan Publishing Company, Volume 8. 41–45.
Wolfgang Kosack: Koptisches Handlexikon des Bohairischen. Koptisch - Deutsch - Arabisch. Verlag Christoph Brunner, Basel 2013, ISBN 978-3-9524018-9-7.