1. (translation). Chart illustration of a, an, and the. Kodansha International; 2002. (Japanese translation)
2. (editor). User&'s reference guide for the British National Corpus, version 1.0. Oxford University Computing Services; 1995.
3. The article book. University of Michigan Press; 2000.
4. STANDARD English grammar. Kirihara Shoten; 1992. (in Japanese)