Wright, J. F. H.
Hale & Iremonger, 1980
Buku Teks
Hanna, Archibald, 1916-2010, author
Garland Publishing, 1985
Buku Referensi
Raat, J.F.H.
Conserve, 1989
Buku Teks
Li, Ju-Chen, author
P. Owen , [1965]
Buku Teks
Morgan, Charles, author
Macmillan, 1946
Buku Teks