Kyburg, Henry E., author
Prentice-Hall, 1969
Buku Teks
Krickeberg, Klaus, author
Addison-Wesley, 1965
Buku Teks
Beckmann, Petr, author
Harcourt, Brace & World, 1967
Buku Teks
Barnett, Frederic, author
Wadsworth, 1967
Buku Teks
Barnett, Frederic, author
Wadsworth, 1968
Buku Teks