Hopgood, F.R.A., author
Macdonald, 1969
Buku Teks
Hopgood, F.R.A., author
Macdonald , 1971
Buku Teks
Aho, Alfred V., author
Prentice-Hall, 1973
Buku Teks
Aho, Alfred V., author
Prentice-Hall, 1972
Buku Teks
Kitchin, C.R., author
CRC Press, Taylor & Francis Group, 2009
Buku Teks