A Dictionary of Advanced Japanese Grammar by Seiichi Makino and Michio Tsutsui.

This book is suitable for advanced learners, and those who wanted to study, review and learn advanced-level grammar found in newspapers, professional journals, technical/business/legal documents, academic papers, and literature! It contains all the Key Sentences, Formations, Example Sentences, detailed notes, explanations, and other infos you can't even find online! The only downside I can think of is that this book is a bit expensive. Be warned, those grammar in this book are uncommon, so if you want to study, learn and review the advanced grammar, this book is definitely for you!

Link: https://www.amazon.com/Dictionar...
Paid: Paid
Practicing skill: Reading
Japanese level: Advanced