Potter, Simeon
Our language
Penguin Books, 1979
Buku Teks SO
Sambrook, G.A.
The English Language
Longmans Green & Co, 1947
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Teaching of english language in the commercial advertisement
Artikel Jurnal
Koneru, Aruna
English language skills
Tata McGraw-Hill, 2011
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Anderson, Wallace L.
Introductory readings on language
Holt, Rinehart and Winston, 1966
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