64 страниц. 2011 год. LAP Lambert Academic Publishing This book is written for teachers of English who wish for knowledge of what mode of feedback (oral or written) should be provided in order to encourage substantive revision in student writing. It is basically the result of one-year experimental research conducted in Cambodian EFL university context. This book will also equip readers with clear purpose in mind and is more user-friendly since both theoretical and practical approaches are addressed with precision and simplification.