Youngseon Jo, author
PT Elex Media Komputindo, 2013
Buku Teks
Youngsun CHO, author
Elex Media Komputindo, 2019
Buku Teks
Ross, Alf, author
Harvard University Press, 1952
Buku Teks
Konkrad-Adenauer-Stiftung, editor
Konkrad-Adenauer-Stiftung, 2007
Buku Teks
Leiserson, Avery, 1913-, author
Alfred A. Knopf, 1958
Buku Teks