Catholic Online: St. Afra
- Most of the juicy details given here are from unreliable legends written 500 years or more after the saint's death.
- http://www.catholic.org/saints/saint.php?saint_id=1151

Afra
- Profile of the martyr.
- http://www.catholic-forum.com/saints/sainta63.htm

Catholic Encyclopedia: St. Afra
- Martyred at Augsburg in the Diocletian persecution (c. 304) for refusing to participate in pagan rites.
- http://www.newadvent.org/cathen/01180b.htm