Sato, Yuri, author
1989
UI - Tesis Membership
Musselman, Vernon A., author
Prentice-Hall, 1977
Buku Teks
Musselman, Vernon A., author
Prentice Hall of India, 1982
Buku Teks
Diamond, Jay, author
Prentice-Hall, 1975
Buku Teks
Hegar, Kathryn
Houghton Mifflin, 1985
Buku Teks