Eckholm, Erik P., author
W.W. Norton, 1976
Buku Teks
The International Nursing Foundation of Japan, 1993
Buku Teks
edited by Jacob A. Frenkel and Michael L. Mussa
Auburn House, 1984
Buku Teks
Streeten, Paul P., author
Boston Institute for Economic Development, Boston University 1989,
Buku Teks
The National Institute of The Korean Language, 2011
Buku Teks