Hellow guys, Welcome to my website, and you are watching 책정리를 하지 않으면 공부해도 소용이 없습니다 (이윤규 공부법). and this vIdeo is uploaded by DreamSchool 이윤규 at 2020-06-22T04:09:36-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.