| 1. | Yulgok Yi I (1536-1584) | | | Bibliography of primary and secondary sources in various languages.
homepage.ruhr-uni-bochum.de |
| 2. | Ojukheon Municipal Museum | | | Place where Yulgok and his mother, Shin Saimdang, lived. Information on buildings, exhibits, and history.
ojukheon.or.kr |
| 4. | Yul-Gok | | | Illustrated biography.
www.tkdtutor.com |
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