Neuman, William Lawrence, 1950-
Social research methods: qualitative and quantitative approaches
Allyn and Bacon, 2000
 Buku Teks
Grinnell, Richard M.
Social work research and evaluation : quantitative and qualitative approaches
F.E. Peacock, 2001
 Buku Teks SO
Neuman, William Lawrence, 1950-
Social research methods: qualitative and quantitative approaches
Allyn and Bacon, 2003
 Buku Teks
Neuman, William Lawrence, 1950-
Social research methods: qualitative and quantitative approaches
Allyn and Bacon, 1994
 Buku Teks
Neuman, William Lawrence, 1950-
Social research methods: qualitative and quantitative approaches
Pearson/​Allyn and Bacon, 2006
 Buku Teks