editor, William Paul
North-Holland, 1982
Buku Referensi
edited by John C. Smart
Springer, 2011
Buku Teks
Aho, Alfred V., author
Prentice-Hall, 1972
Buku Teks
Feller, William, author
John Wiley & Sons, 1957
Buku Teks
Slater, John C. (John Clarke), 1900-1976, author
McGraw-Hill, 1960
Buku Teks