Airasian, Peter W.
McGraw-Hill, 2000
Buku Teks
Marzano, Robert J.
ASCD, 1994
Buku Teks
Kubiszyn, Tom
John Wiley & Sons, 2003
Buku Teks
Salvia, John
Houghton Miffiln, 1991
Buku Teks
edited by Paul W. Holland and Donald B. Rubin
Academic Press, 1982
Buku Teks