Japanese: a comprehensive grammar by 
A dictionary of basic Japanese sentence patterns by 
The handbook of Japanese verbs : Nihongo dōshi handobukku by 
A dictionary of basic Japanese grammar = Nihongo kihon bunpō jiten by 
A dictionary of intermediate Japanese grammar = Nihongo bunpō jiten [chūkyū hen] by 
A dictionary of advanced Japanese grammar = Nihongo bunpō jiten. Jōkyū hen by 
How to tell the difference between Japanese particles : comparisons and exercises by 
