Lodico, Marguerite G., author
Jossey-Bass, 2010
Buku Teks
Slavin, Robert E., author
Paramount Publishing, 1994
Buku Teks
Hoy, Wayne K., author
Random House , 1978
Buku Teks
Hoy, Wayne K., author
McGraw-Hill, 2013
Buku Teks
Kiernan, John A., author
Pergamon Press, 1981
Buku Teks