日本に住むの台湾人、集合だよ〜

The below URL is the Taiawan's Representative (=Ambassador) in Tokyo.

http://www.taiwanembassy.org/JP/mp.asp?mp=202

They may have some information where to get Chinese bokks, and they have the library in their office.

The well-known book stores which deals the foreign languages books are MARUZEN or JYUNKUDO in Tokyo, they may have stock some Chinese books, and can order.

Good luck,