Columbia subject headings:
Oksan Sŏwŏn (Kyŏngju-si, Korea)
Yi, Ŏn-jŏk, 1491-1553.
Harvard subject headings:
Princeton subject headings:
Oksan Sŏwŏn (Kyŏngju-si, Korea)
Yi, Ŏn-jŏk, 1491-1553.