Free Grammars in PDF

p://dl.is.vnu.edu.vn/bitstream/123456789/57/1/Longman_English_Grammar_Practice_Intermediate_Self_Study_Edition.pdf (Longman English Grammar by Alexander. Longman)

http://biyoloji.balikesir.edu.tr/edundar/pdf_dosyasi.pdf (English Grammar in Use by Raymond Murphy. CUP)

http://anianetart.nazwa.pl/ksiazki/Advanced-grammar-in-use-Martin-Hewings.pdf (Advanced English Grammar by Martin Hewings. CUP)