Giegerich, Heinz J.
English phonology: an introduction/Heinz J. Giegerich
Cambridge University Press, 1995
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Cameron, Susan, 1958-
Perfecting your english pronunciation
McGraw-Hill, 2012
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Yarber, Robert
Reviewing basic grammar/ Mary Laine Yarber
Harper & Collins, 1993
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Murphy, Raymond
English grammar in use : a reference and practice book for intermediate students / Raymond Murphy
Cambridge University Press, 1998
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Graver, B.D.
Advanced english practice
Walton Street , 1987
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