Silverman, David, author
Doing qualitative research: a practical handbook
Sage Publications , 2010
 Buku Teks
Handbook of qualitative research : second edition
Norman K. Denzin, Yvonna S. Lincoln, editors
Sage Publications, 2000
 Buku Referensi
Silverman, David, author
Doing qualitative research / David Silverman
Sage , 2013
 Buku Teks
Neuman, Lawrence W., author
Basics of social research: qualitative and quantitative
Pearson New International edition, 2014
 Buku Teks
Berg, Bruce L. (Bruce Lawrence), 1954-, author
Qualitative research methods for the social sciences
Pearson, 2014
 Buku Teks