Ching, Lai Sheng, author
Ryerson Press, 1969
Buku Teks
Lalement, Rene, author
Prentice-Hall, 1993
Buku Teks
Copi, Irving M., author
Prentice-Hall, 1995
Buku Teks
Copi, Irving M., author
Prentice-Hall, 1979
Buku Teks
Dalen, Dirk van, author
Springer-Verlag, 1994
Buku Teks