http://image.wowbook.com/book/large_image/$ISBN2.gif
Tmecca http://www.tmecca.co.kr/search/isbnsearch.html?isbnstr=
AladdinMusic http://www.aladdin.co.kr/music/catalog/music.asp?ISBN= http://image.aladdin.co.kr/cover/cdcover/$ISBN_1.jpg @/cdcover/(\d+)_1\.jpg@