Volitelná odborná publikace z oboru (min 10 relevantních zdrojů), napsaná rodilým mluvčím v posledních 5 letech
MCCARTHY, Michael a Felicity O'DELL. Academic vocabulary in use: vocabulary reference and practice : self-study and classroom use. Second edition. Cambridge: Cambridge University Press, 2016. ISBN 978-1-107-59166-0.
IBBOTSON, Mark. Professional English in Use Engineering. Cambridge, Cambridge University Press 2009. 112 p. ISBN 978-0521734882.