- Raymond Murphy - English Grammar in Use: https://tidd.ly/2VxhFWf an absolute must for everyone learning English as a foreign language. Covers each topic on a single page only followed by a page of exercises with answers.
- Martin Hewings - Advanced Grammar in Use: https://tidd.ly/3AkqOAr A more advanced level of the previous book, great for the academic level of English.
- Diana Hopkins with Pauline Cullen - Grammar for IELTS: https://tidd.ly/2WSqNW4 Developed especially for IELTS preparation, this book creates a wize integration of grammatical topics with IELTS test practice.
- L.G. Alexander - Longman English Grammar With Key: https://tidd.ly/3fEuTaQ Another advanced-level grammar book. It is flexible, easy to use and clearly organised, and therefore can be used from any point using the provided index.
- Jane Straus - The Blue Book of Grammar and Punctuation: https://tidd.ly/3CrQAoj Punctuation matters, especially in academic writing. This book gives a comprehensive overview of punctuation rules and provides self-checked assignments after each chapter.
Hope you find this list useful. Good luck with your progress and the test!