Gorrell, Paul. author
Cambridge University Press, 2006
Buku Teks
Cambridge University Press, 1995
eBooks
Aho, Alfred V., author
Prentice-Hall, 1972
Buku Teks
Ratna Iriani, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1987
UI - Skripsi (Membership)
edited by Masaru Tomita
Kluwer Academic, 1991
Buku Teks