Kennedy, Dora
Exploring languages : a complete introduction for foreign language students
National Texbook, 1994
 Buku Teks
Cohen, Bernard Cecil, 1926-
The press and foreign policy
Princeton University Press, 1969
 Buku Teks
Hazen, Kirk
An introduction to language
Massachusetts : Wiley Blackwell, 2015
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Fromkin, Victoria A.
An introduction to language
Holt, Rinehart and Winston, 1981
 Buku Teks
Frontier of Foreign Language Education
Graduate School of Language and Culture, Osaka University, 2018
 Majalah, Jurnal, Buletin