Soft tennis at the 1921 Korean National Sports Festival
Dong-A Ilbo
동아일보 1921년 10월 18일 제3면<a rel="nofollow" class="external autonumber" href="http://newslibrary.naver.com/viewer/index.nhn?articleId=1921101800209203001&amp;editNo=1&amp;printCount=1&amp;publishDate=1921-10-18&amp;officeId=00020&amp;pageNo=3&amp;printNo=416&amp;publishType=00020">[1]</a>