Understanding and Using English Grammar, With Answer Key, Betty Schrampfer Azar, 2002.
A classic developmental skills text for intermediate to advanced students of English as a second or foreign language, Understanding and Using English Grammar is a comprehensive reference grammar as well as a stimulating and teachable classroom text.
Basic english grammar, Third Edition, Teacher's Guide, Betty Schrampfer Azar, Stacy A.Hagen, 2006.
This Teacher's Guide is intended as a practical aid to teachers. In it, you will find notes on the content of each unit, suggestions for exercises and classroom activities, and answers to the exercises.