Salomaa, Arto
Computer Science Press, 1981
Buku Teks
Koenen, Liesbeth
Nijgh & Van Ditmar, 1991
Buku Teks
Vendryes, J. (Joseph), 1875-1960, author
Routledge, 1996
Buku Teks
Whatmough, Joshua
The New American Library, 1956
Buku Teks
Diamond, A. S. (Arthur Sigismund)
Methuen , 1959
Buku Teks