| title | ISBN-13 | year of publica- tion  | other author(s) | 
|---|---|---|---|
| Analyzing Qualitative Data: Systematic Approaches | 978-0-7619-2490-6 | 2009 | Dr. H. Russell Bernard | 
| Collecting and Analyzing Qualitative Data: A Step-by-Step Guide | 978-0-7619-2486-9 | " | |
| Qualitative Analysis & Research: Techniques for Collecting and Analyzing Data | 978-0-7619-2489-0 | 2007 | " | 
| Sampling in Qualitative Research | 978-0-7619-2485-2 | " | 
D. G. · (D-R) · D.W. · D.W. Ryan · Dr. G. · G. W. · Gery Ryan · Gery W. Ryan · W R. · W. Ryan