editor, Robert W. Smeaton
McGraw-Hill, 1977
Buku Referensi
Yonhap News Agency, Seoul ; translated by Monterey Interpretation and Translation Services
M.E. Sharpe, 2003
Buku Referensi
edited by, Edwin H. Gaylord
McGraw-Hill, 1990
Buku Referensi
editors, Perrin Walker, William H. Tarn
CRC Press, 1991
Buku Referensi
edited by Alison Scammell
Aslib, 2001
Buku Referensi