 |
| Iwasaki, Shoichi 2002. Japanese. Amsterdam/Philadelphia: John Benjamins |
| Kunihiro, Tetsuya 1995. Nichi-eego hikaku kooza, dai 2 kan, bunpoo [The Comparative Study of Japanese and English Series, Vol. 2, Grammar]. Tokyo: Taishuukan |
| Shibatani, Masayoshi 1999. The Language of Japan. Cambridge: Cambridge University Press |
|
 |