Information systems research: issues, methods and practical guidelines
editor, Robert Galliers
Blackwell, 1991
 Buku Teks SO
The information systems research colloquium : qualitative research methods, vol. I
editors, James I. Cash and Paul R. Lawrence
Harvard Business School, 1989
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Pickard, Alison Jane
Research methods in information
Facet Publishing, 2007
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Pickard, Alison Jane
Research methods in information
Neal-Schuman , 2013
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Stewart, David W.
Secondary research: information sources methods
Sage, 1984
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