Proficiency Grammar

LONGMAN

Grammar and vocabulary for Cambridge advanced and proficiency. Per il Liceo scientifico [Lingua inglese]

ACTFL

Proficiency-Based Instruction: Teaching GRAMMAR for Proficiency (English Edition)

Cambridge English

Grammar for CAE and Proficiency With Answers: Self-study Grammer Reference and Practice. Con 2 Audio CD

Independently published

GRAMMAR FOR ADVANCED AND PROFICIENCY EXAMS      

Independently published

English Grammar Practice - Certificate in Proficiency of English: 100 C2 key word transformation sentences

Pelikan Yayınları

English Grammar: For ÜDS KPDS YDS TOEFL and Proficiency Exams

Cambridge University Press

Common mistakes at proficiency... and how to avoid them. Per le Scuole superiori

Longman Italia

Activating grammar digital edition. Con espansione online. Con CD-Rom. Per le Scuole superiori

Japanese Grammar for JLPT N4: Master the Japanese Language Proficiency Test N4 (English Edition)

English language academy

English Grammar Practice - Certificate in proficiency of English: 100 CPE Key word transformation sentences (English Edition)