Achievers Junior Secondary English, Form 1
New Horizons English, Form 1
Chambers English Dictionary
Greenbaum, S. and Quirk, R. 1990: A Student’s Grammar of The English Language.
Kirkpatrick, Betty 2002: Book of Common Phrases.
Leech, G. et al 2001: An A-Z of English Grammar and Usage.
Manser, H. Martin (Ed) 1990: Chambers Dictionary of Synonyms & Antonyms
McCarthy, M. and O’Dell Felicity 1996: English Vocabulary in Use
Swan, Michael 2005 : Practical English Usage (7th impression, 2010)
Thomson, A.J. and Martinet A. V. 1994: A Practical English Grammar
Turton, N.D. and Heaton, J. B. 1996: Dictionary of Common Errors
