Dekker, Adrianus J.
Prentice-Hall, 1959
Buku Teks
Chhalotra, G.P.,
Khanna, 1980
Buku Teks
Beaty, Wayne H., editor
McGraw-Hill Publishing Company, 1990
Buku Referensi
Carlson, A. Bruce
Addison-Wesley, 1981
Buku Teks
Korn, Granino A.
McGraw-Hill, 1965
Buku Teks