Korn, Granino A., author
McGraw-Hill, 1965
Buku Teks
Dekker, Adrianus J., author
Prentice-Hall, 1984
Buku Teks
Shepherd, John, author
Pitman, 1993
Buku Teks
Gray, Alexander, author
McGraw-Hill , 1962
Buku Teks
Shepherd, John, author
Pitman, 1973
Buku Teks