Krech, David, author
McGraw-Hill, 1948
Buku Teks
Spiegel, Murray R., author
McGraw-Hill, 1965
Buku Teks
Spiegel, Murray R., author
McGraw-Hill, 1981
Buku Teks
Scheid, Francis, author
McGraw-Hill, 1968
Buku Teks
Monks, Joseph G., author
McGraw-Hill, 1987
Buku Teks