Gorman, G.E.
Qualitative research for the information professional: a practical handbook
Facet Publishing, 2005
 Buku Teks
Berg, Bruce Lawrence, 1954-
Qualitative research methods for the social sciences
Pearson, 2004
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Understanding social research: perspectives on methodology and practice
edited by George Mckenzie, Jackie Powell, Robin Usher
The Falmer Press, 1997
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Casanova, Pablo Gonzalez
The Fallacy of social science research Acritical exanination and new qualitative model/ Pablo Gonzalez Casanova ; Translated by Susan Beth Kapilian and Georganne Weller
Pergamon Press, 1981
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Bazeley, Pat
Qualitative data analysis with nvivo
Sage Publications, 2007
 Buku Teks SO