Urbina, Susana, author
John Wiley & Sons, 2004
Buku Teks
Cronback, Lee J.
Harper International Student , 1964
Buku Teks
Cronbach, Lee J
Harper and Row, 1970
Buku Teks
Anastasi, Anne, author
Macmillan, 1982
Buku Teks
Anastasi, Anne, author
Macmillan, 1968
Buku Teks