English Vocabulary in Use Pre-intermediate and Intermediate. 4th Edition. McCarthy M., O'Dell F. Cambridge University Press. 2017. 265 p.
English Vocabulary in Use Upper-Intermediate. 4th Edition. McCarthy M., O'Dell F. Cambridge University Press. 2017. 280 p.
English Idioms in Use. Self-study and classroom use. McCarthy M., O'Dell F. Cambridge University Press. 2017.
Grammar and Vocabulary for Cambridge First. Second Edition. Prodromou L. Person Education Limited, 2012. 322 p.
MacMillan English Grammar in Context: Essential Level. Simon Clarke. 2008. 208 p.
Murhy R. English Grammar in Use. A self-study rewference and practice book for elementary students of English. Cambridge University Press. 1994.
Murhy R. English Grammar in Use. A self-study rewference and practice book for intermediate. students of English. Cambridge University Press. 1998.
Seidl J. Grammar One. Oxford University Press. 1992.
Seidl J. Grammar Two. Oxford University Press. 1992.
Seidl J. Grammar Three. Oxford University Press. 1993.
Seidl J. Grammar Four. Oxford University Press. 1994.
The New York Times.
Electronic resources
Common European Framework of Reference for Languages: Learning, Teaching/ Language Policy Unit, Strasbourg www.coe.int/lang-CEFR.
DICTIONARES
Cambridge International Dictionary of English. Cambridge University Press, 1995.
Longman Dictionary of English Language and Culture. Longman Group UK Limited, 1992.
Webster's New World Dictionary. Third College Edition. Webster's New World Cleveland and New York, 1998.