Rèn luyện kỹ năng ra quyết định và giải quyết vấn đề Lao động.-2020

Language leader course book advance/David Cotton; David Falvey Longman.-2010

Language leader course book upper inter/David Cotton; David Falvey Longman.-2008

Language leader course book intermediate/David Cotton; David Falvey Longman.-2008

Market leader : Upper Intermediate business english course book and practice life / David Cotton, David Falvey, Simon Kent Pearson Longman.-2007

Market leader : Intermediate business english course book and practice life / David Cotton, David Falvey, Simon Kent Pearson Longman.-2007

Market leader :Upper Intermediate business english course book and practice life / David Cotton, David Falvey, Simon Kent Pearson Longman.-2007

Market leader : Pre - Intermediate business english course book and practice life / David Cotton, David Falvey, Simon Kent Pearson Longman.-2007

Market Leader:Business English Course Book. Pre-intermediate Pearson Education Limit...-2012

New edition market leader Văn hóa Thông tin.-200?