Rees, Colin
An introduction to research for midwives / Colin Rees
Churchill Livingstone/Elsevier, 2012
 Buku Teks SO
Using qualitative methods in institutional research
edited by David M. Fetterman
Jossey Bass, 1991
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Glaser, Barney G.
The Discovery of grounded theory: strategies for qualitative research
Aldine, 1967
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Qualitative methods in organizational research: a practical guide
edited by Catherine Cassel and Gillian Symon
Sage, 1994
 Buku Teks SO
Qualitative methods in organizational research: a practical guide
edited by Catherine Cassel and Gillian Symon
Sage, 1995
 Buku Teks SO