Bierstedt, Robert, author
McGraw-Hill, 1964
Buku Teks
Weinberg, Meyer, author
Prentice-Hall, 1959
Buku Teks
Hunt, Elgin F., author
MacMillan, 1987
Buku Teks
Hunt, Elgin F., author
Macmillan, 1962
Buku Teks
Hunt, Elgin F., author
Macmillan, 1984
Buku Teks