Patton, Michael Quinn
Qualitative research and evaluation methods
SAGE, 2015
 Buku Teks
Patton, Michael Quinn
Qualitative research and evaluation methods
SAGE Publication, 2002
 Buku Teks SO
Patton, Michael Quinn
Qualitative evaluation and research methods
Sage, 1990
 Buku Teks SO
Handbook of qualitative research
Norman K. Denzin, Yvonna S. Lincoln, editors
Sage Publications, 1994
 Buku Referensi
The Sage handbook of qualitative research
edited by Norman K. Denzin, Yvonna S. Lincoln
Sage, 2011
 Buku Referensi