Stedry, Andrew C.
Prentice-Hall, 1960
Buku Teks
Dearden, John, 1919-2004
Prentice-Hall, 1962
Buku Teks
Gardner, Fred V.
McGraw-Hill, 1940
Buku Teks
Gillespie, Cecil, author
Prentice-Hall, 1957
Buku Teks
MacDonald, John Haskell, 1896
Prentice-Hall, 1939
Buku Teks