Qualitative research in social work
edited by Edmund Sherman and William J. Reid
Columbia University Press, 1994
 Buku Teks
Shaw, Ian
Qualitative research in social work
Sage, 2001
 Buku Teks SO
Punch, Keith F.
Introduction to Social Research: quantitative and qualitative approaches
Sage, 1998
 Buku Teks SO
Neuman, William Lawrence, 1950-
Social research methods: qualitative and quantitative approaches
Allyn and Bacon, 2000
 Buku Teks SO
Neuman, William Lawrence, 1950-
Social research methods: qualitative and quantitative approaches
Pearson/​Allyn and Bacon, 2006
 Buku Teks