Raymond Murphy, English Grammar in Use, Cambridge University Press, 1986
J C Nesfield, Modern English Grammar
Andrew Northedge, The Good Study Guide, Open University, 2001
H W Fowler, A Dictionary of Modern English Usage
C T Onions, Modern English Syntax, prepared from the author’s material by B. D. H. Miller, RKP, London & Henley, 1985
Kumar Tyagi, Technical Communication Skills, Osbert Publishing House, New
Norman Lewis, Speak Better Write Better English, W. R. Goyal Publishers & Distributors, Delhi, 2004
Dr. Vipin Kumar Tyagi, Assistant Professor of English, Department of Humanities and Social Sciences, KIET Group of Institutions, Delhi- NCR affiliated to Dr. APJ AKT University, Lucknow has a wide experience of more than 14 years in academics. He was conferred Ph.D. degree in English in 2007. He has attended many national and international seminars/ conferences of repute. He has published several research articles/ papers in various national and international journals which have been appreciated and reviewed by learned professors. Dr. Tyagi has a keen interest in research in English literature and language. He has also been awarded as CEGR Certified Academic Leader from Centre for Education and Growth and Research. He is also certified Human Values & Professional Ethics Trainer from IIT Kanpur. He also authored a book “Technical Communication Skills” from OPH, New Delhi last year.