Demerath, N. J. (Nicholas Jay), 1936-, author
Random House, 1969
Buku Teks
Bruce, Steve
Oxford University Press, 1996
Buku Teks
Davie, Grace, author
SAGE, 2013
Buku Teks
Council for Research in Values and Philosophie, 2004
Buku Teks
Thompson, Ian
Longman, 1965
Buku Teks