Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
Info: New comment - [yes24, 2020-04-25, 수학선생님도 몰래 보는 수학책, http://www.yes24.com/Product/Goods/17943052?scode=032&OzSrank=1, 굿, null]