Speziale, Helen J. Streubert
Qualitative research in nursing : advancing the humanistic imperative
J.B. Lippincott, 1999
 Buku Teks SO
Computers in humanistic research: readings and perspective
edited by Edmund A. Bowles
Prentice-Hall, 1967
 Buku Teks SO
Qualitative research
edited by Alan Bryman, Robert G. Burgess
SAGE Publication, 1999
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Holloway, Immy
Basic concept for qualitative research
Blackwell, 1997
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Ethics in qualitative research
edited by Mauthner, Melanie (ed); Birch, Maxine; Jessop, Julie; Miller, Tina
Sage, 1002
 Buku Teks SO