Language testing
Edward Arnold ,
 Majalah, Jurnal, Buletin
Hughes, Arthur, 1941-
Testing for language teachers
Cambridge University Press, 1994
 Buku Teks SO
Harris, David P.
Testing english as a second language
McGraw-Hill, 1969
 Buku Teks SO
Directions in language testing
edited by John A.S. Read
SEAMEO, 1981
 Buku Teks SO
Ellestad, Myrvin
Stress Testing: principles and practice
F.A. Davis, 1996
 Buku Teks SO