Eastwood, John
English for travel / John Eastwood
Oxford University Press, 1994
 Buku Teks
Koneru, Aruna
English language skills
Tata McGraw-Hill, 2011
 Buku Teks
Teaching of english language in the commercial advertisement
 Artikel Jurnal
Marckwardt, Albert H., editor
Introduction to the English language / Albert H. Marckwardt
Oxford University Press, 1950
 Buku Teks
Kierzek, John M.
The Macmillan handbook of english / John M. Kierzak
Macmillan, 1951
 Buku Teks