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Marc Helgesen
Marc Helgesen is author of more than 150 professional articles, books, and textbooks, including the English Firsthand series (Pearson Education/Longman Asia) and Practical English Language Teaching (PELT) – Listening (David Nunan, Ed.; McGraw-Hill) and has been an invited/...Bio's KOTESOL National Conference 2012 April 14, 2012