edited by Gregory A. Kimble, Michael Wertheimer, Charlotte White
American Psychological Association, 1991
Buku Teks
Beek, Leo, author
Van Gorcum, 1985
Buku Referensi
Berndt, Catherine H., author
Pitman, 1983
Buku Teks
Cramer, John, author
Allen & Unwin, 1989
Buku Teks
editor-in-chief, Alain de Mijolla
Macmillan Reference USA, 2005
Buku Referensi