<숨마쿰라우데 수학기본서 수학 II>
블로그 https://blog.naver.com/odwpms/221580982615
예스24 http://blog.yes24.com/document/11492086
인터파크 http://book.interpark.com/blog/moonwall/5729647
페이스북 https://www.facebook.com/odwpms07/posts/1167415743455395
타카페 https://cafe.naver.com/michiexam/1892328
https://cafe.naver.com/parentsdna/49069