Fei, Foster (2011) Foster Fei on applying classic grounded theory evaluation criteria. In: Grounded Theory: a practical guide. Sage, London, pp. 150-151. ISBN 9781848609938
Fei, Foster (2011) Foster Fei on theoretical coding. In: Grounded Theory: a practical guide. Sage, London, p. 124. ISBN 9781848609938
Fei, Foster and Hardaker, Glenn (2010) The role of the orthodox grounded theory methodology in establishing universal behavioural patterns in comparative cross-national research. Working Paper. The University of Huddersfield, Huddersfield. (Unpublished)