[email protected] Some of the graphs have been borrowed from : Macquirie University Phonetics and Phonology Department http://clas.mq.edu.au/speech/phonetics/phonetics/consonants/index.html References CRUTTENDEN, A. (2001) Gimson’s Pronunciation of English . 6th edition . Arnold . GB COLLINS & MEES (2008) Practical Phonetics and Phonology . A resource book for students . 2nd edition . Routledge . London O’CONNOR, J. (1998) Better English Pronunciation . CUP. London PONSONBY, M (---) How , Now , Brown Cow ? Prentice Hall. London RECAMAN, M (1988) English Phonetics : Segmentals . ABS. Santa Fe ROACH, P.(2005) English Phonetics and Phonology . 3rd. Edition . CUP. London