De Vries, Mary Ann, author
[Publisher not identified], 1978
Buku Teks
De Vries, Mary Ann, author
Prentice-Hall, 1995
Buku Referensi
James, Preston E., author
John Wiley & Sons, 1980
Buku Teks
Acheson, Dean
Harper & Brothers, 1955
Buku Teks
Cleage, Pearl
Orion, 1997
Buku Teks