IB교육 참고 사이트

https://www.youtube.com/watch?v=GDt2wODVdHs

https://www.youtube.com/watch?v=1ZU2BOnvi_0

https://www.youtube.com/watch?v=y9JDXOY3TZA

https://www.youtube.com/watch?v=aERBCHzntiA

https://www.youtube.com/watch?v=rdLMzsDhisU

https://www.youtube.com/watch?v=UV2GXE7EhOI

https://www.youtube.com/watch?v=cwkAnS-DmC8

https://www.youtube.com/watch?v=H6iv_pXNOhA

https://www.youtube.com/watch?v=0uoGxaYMARM

https://www.youtube.com/watch?v=rWOXTgL3v5g

https://blog.naver.com/PostView.naver?blogId=angela0319&logNo=222956204800&categoryNo=0&parentCategoryNo=0&viewDate=&currentPage=6&postListTopCurrentPage=1&from=postView&userTopListOpen=true&userTopListCount=5&userTopListManageOpen=false&userTopListCurrentPage=6

https://blog.naver.com/PostList.naver?blogId=gunred&from=postList&categoryNo=132