Pichot, Pierre.
Dacosta, 1983
Buku Teks
editor, Denis Leigh, C.M.B. Pare, John Marks
MTP Press, 1977
Buku Referensi
Leigh, Denis
M.T.P. Press, 1977
Buku Referensi
senior editors: Matthew A. Fuller, Martha Sajatovic
Lexi-Comp Inc, 2009
Buku Referensi
Hughes, Jennifer
John Wiley & Sons, 1991
Buku Teks