Elsevier, 2004
Buku Teks
Campbell, Donald T., author
Sage, 2001
Buku Teks
Blalock, Hubert M., author
Sage Publications, 1982
Buku Teks
Payne, James L., author
Lytton, 1975
Buku Teks
Roy F. Baumeister, Kathleen D. Vohs, editors
Sage Publications, 2007
Buku Referensi