Delta's Key to the Toefl Test
http://www.amazon.co.jp/Deltas-Key-Toefl-Test-CD-Rom/dp/1887744533/ref=sr_1_3/250-4862746-7369064?ie=UTF8&s=english-books&qid=1177503664&sr=1-3
Barron's How to Prepare for the Toefl Essay
http://www.amazon.co.jp/Barrons-Prepare-Toefl-Essay-Computer-Based/dp/0764123130/ref=sr_1_1/250-4862746-7369064?ie=UTF8&s=english-books&qid=1177503886&sr=1-1