Schwartz, Alvin, author
Harper Trophy, 1984
Buku Teks
Schwartz, Alvin, author
Harper Trophy, 1981
Buku Teks
Schwartz, Alvin, author
Harper Trophy, 1991
Buku Teks
Goldman, William, author
Bloomsbury, 2000
Buku Teks
Liswood, Laura A., author
Pandora, 1995
Buku Referensi