MAXQDA
Juliet Corbin and Anselm Strauss: Basics of Qualitative Research: Techniques and Procedures for Developing Grounded Theory, 3rd edition, 2008, Sage Publications, Los Angeles, London, New Delhi, Singapore
Ann Lewins and Christina Silver: Using Software in Qualitative Research: A Step-by-Step Guide, 2nd edition, 2014, Sage Publications, Los Angeles, London, New Delhi, Singapore