@book{KOSIS2023,
author = {KOSIS},
title= {First marriages by age of bridegroom and bride 1990–2022},
year = {2023},
URL = {https://kosis.kr/statHtml/statHtml.do?orgId=101&tblId=DT_1B83A36&conn_path=I2&language=en},
address = {Daejeon},
publisher = {Statistics Korea},
}