Bryan, Agnes (2013) African psychology: Another frame of reference. New Associations (12). p. 8.

Briggs, Stephen, Whittaker, Andrew, Linford, Hannah, Bryan, Agnes, Ryan, Elaine and Ludick, Dawn (2011) Safeguarding children's rights. Exploring issues of witchcraft and spirit possession in London's African communities. Project Report. University of East London , London. Full text available