Neuman, William Lawrence, 1950-
Allyn and Bacon, 2003
Buku Teks
Mikes Saks, Judith Allshop, editor
Sage, 2019
Buku Teks
Creswell, John W.
Sage Publication, Inc, 2003
Buku Teks
Neuman, William Lawrence, 1950-
Allyn and Bacon, 1994
Buku Teks
Neuman, William Lawrence, 1950-
Pearson/Allyn and Bacon, 2006
Buku Teks