@techreport{KOSIS2020,
author = {KOSIS},
title= {Population by administrative district/sex/education level 2020},
year = {2020},
URL = {https://kosis.kr/statHtml/statHtml.do?orgId=101&tblId=DT_1PM2001&conn_path=I2},
publisher = {Statistics Korea},
address = {Daejeon},
}