9 facts about Yi Chang-ok by Gwylym Owen Share this: Share on Facebook Share on X (Twitter) Share on LinkedIn Share on E-mail Share on Reddit Share on WhatsApp Share on Telegram What do you think of the works of Yi Chang-ok? Use the form below to say your opinion about Yi Chang-ok. All opinions are welcome! Share this: Share on Facebook Share on X (Twitter) Share on LinkedIn Share on E-mail Share on Reddit Share on WhatsApp Share on Telegram See also Carl Johan De Geer: life and works