Duwies y brain /
Cann, Kate.
Evans, Audrey,1945-
University of Wales, Aberystwyth.Centre for Educational Studies.
Aberystwyth : Ganolfan Astudiaethau Addysg,
c2007.
Cyhoeddwyd yn wreiddiol = Originally published: 2005.
First published as Crow Girl in 2005 by Barrington Stoke Ltd., Edinburgh.
Bullying
Self-esteem
Welsh language