Columbia subject headings:
Korean language--Comparison.
Korean language--Korea (North)--Lexicography.
Korean language--Korea (North)--Orthography and spelling.
Korean language--Korea (South)--Lexicography.
Korean language--Korea (South)--Orthography and spelling.
Harvard subject headings:
Korean language--Comparison.
Korean language--Korea (North)--Lexicography.
Korean language--Korea (North)--Orthography and spelling.
Korean language--Korea (South)--Lexicography.
Korean language--Korea (South)--Orthography and spelling.
Princeton subject headings:
Korean language--Comparison.
Korean language--Korea (North)--Lexicography.
Korean language--Korea (South)--Lexicography.