1. Meikai nihongo akusento jiten 明解アクセント辞典 (Japanese accent dictionary). 2nd ed;Akinaga, K. 秋永一枝,1981
2. Dictionaries and Encyclopedias: Relationship;Allan, K.,2006
3. Lexicon: Structure;Allan, K.,2006
4. Compound;Bauer, L.,2006
5. Dvandva;Bauer, L.,2008