Merriam Webter
Collins
Sure Purcell
Dorothy E Zemach
NXB Tre
Chambers
Geoffrey Leech
Larousse
Korean
R L Trask
Oxford
Merriam Webster
Periplus
Martin Cutts
Webster
Laurie Bauer & Peter Trudgill
Margaret Helliwell
Michelle Maxom
Lary Ferlazzo
Jim Scrivener
Cengage
Bookworm Hanoi
