Ross, Robert C., author
McGraw-Hill, 1951
Buku Teks
Shepherd, Geoffrey S., author
Iowa State University Press, 1968
Buku Teks
University of Tokyo Press, 1969
Buku Teks
Organisation for Economic Co-operation and Development, 1975
Buku Teks
Tung, Ta-Lin, author
Foreign Languages Press, 1959
Buku Teks