Effective English

Schofield & Sims Ltd

Effective English: Bk. 2                        

Pearson

Effective English (English Edition)              

Evans Brothers Ltd

Effective English: Bk. 1                        

S. Chand Publishing

Art of Effective English Writing                

Effective English [Paperback]                    

Evans Brothers Ltd

Effective English: Tchrs' Bk. 1                  

Blurb

Fun and Effective English Learning              

Kogan Page

How to Write Effective Business English: The Essential Toolkit for Composing Powerful Letters, E-mails and More, for Today's Business Needs: 1

Extensive English Lessons: Most Effective English Study (English Edition)

Effective English Grammar: English Grammar with Telugu Explanation by Nagavalli Siva (English Edition)