Jones, Daniel
English pronouncing dictionary
Everymans`s Reference Library, 1956
 Buku Teks
Jones, Daniel
Cambridge english pronouncing dictionary
Cambridge University Press, 2003
 Buku Teks
Jones, Daniel
English pronouncing dictionary
Cambridge University Press, 1992
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Kenyon, John Samuel
A pronouncing dictionary of American English
Merriam-Webster ; G. & C. Merriam Co., 1953
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Michael McCarthy
english vocabulary in Use
1999
 Buku Teks