Simon, Herbert A., author
Macmillan, 1955
Buku Teks
Simon, Herbert A., author
Macmillan, 1961
Buku Teks
Radford, K.J., author
Phoenix Press, 1981
Buku Teks
Melman, Seymour, author
Oxford, Basil Blacwell & Mott
Buku Teks
Thomas N. Ingram...[et al.]
Harcourt College Publishers, 2001
Buku Teks