English 900 / prepared by English Language Services, Inc.
Collier McMillan , 1964
Buku Teks SO
Sambrook, G.A.
English language
Longmans, Green, 1947
Buku Teks SO
Sambrook, G.A.
The English Language
Longmans Green & Co, 1947
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Flesch, Rudolf
A new way to better English
Harper & Brothers, 1958
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Greenbaum, Sidney
A students grammar of the English language
Longman , 1990
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