아래 링크를 클릭하여 자료를 다운로드 받아 주세요.

*YDB4 GKI Book

https://drive.google.com/file/d/1jGUTtx-MzoT4JwJNlah2prGxPn445V9n/view?usp=sharing

*YDB4 Picture & Speaking

https://drive.google.com/file/d/1aBF9ci6aano4udIClB0jfQwMmDqQZjVa/view?usp=sharing

*Storybook

https://drive.google.com/file/d/1pRec1ZuZKBpLkQUxKl0pf4zKdrNe8woa/view?usp=sharing

*Storybook mp3

https://drive.google.com/drive/folders/17eJePIh44HqKgsvhXC3nm3WRpPSWPoVh?usp=sharing