Hammond, Kenneth R., author
Knopf, 1963
Buku Teks
Hammond, Kenneth R., author
Alfred A. Knopf , 1962
Buku Teks
Shavelson, Richard J., author
Allyn and Bacon , 1988
Buku Teks
Edwards, Allen L., author
Holt, Rinehart and Winston, 1966
Buku Teks
Kiess, Harold O.
Allyn And Bacob, 1989
Buku Teks