Koneru, Aruna
English language skills
Tata McGraw-Hill, 2011
Buku Teks SO
Sambrook, G.A.
English language
Longmans, Green, 1947
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Teaching of english language in the commercial advertisement
Artikel Jurnal
Burton, Samuel Holroyd
Mastering english language
Macmillan, 1992
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Greenbaum, Sidney
A students grammar of the English language
Longman , 1990
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