- Variations of alphabets in use in various regions of a wider area where a particular type of alphabet is in use, for instance that of the Greek world that emerged after the adoption of the Phoenician alphabet by the Greeks.
- Jeffery 1961
- Τουράτσογλου (et al.) 2002
- Katsiadakis Helen (AA)
- Chrysovitsanos Gerasimos (AA)
In other languages