Columbia subject headings:
Education, Rural--Korea--History--20th century.
Women educators--Korea--Anecdotes.
Women social reformers--Korea--Anecdotes.
Harvard subject headings:
Education, Rural--Korea--History--20th century.
Women educators--Korea--Anecdotes.
Women social reformers--Korea--Anecdotes.
Princeton subject headings:
Ch'oe, Yong-sin, 1909-1935.
Christian educators--Korea--Biography.
Education, Rural--Korea--20th century.
Korea--Rural conditions--20th century.
Korea--Social conditions--20th century.
Women social reformers--Korea--Biography.