Torgerson, Warren S., author
John Wiley & Sons, 1958
Buku Teks
Schiffman, Susan S., author
Academic Press, 1981
Buku Teks
Schiffman, Susan S., author
Buku Teks
Platonov, K.I., author
Foreign Languages Publishing House, 1959
Buku Teks
Psychology Press, 2004
Buku Teks