Matthew M. Garrey [and others]
Churchill Livingstone, 1974
Buku Teks
Green, John Richard
New York The Co-operative Publication Society [t.th.]
Buku Teks
edited by Fiona Roberts, Elaine MacDuff
Elsevier, 2018
Buku Teks
Hinton, Gertrude D. M.
Fearon Publ., 1969
Buku Teks
Hinton of Bankside, Lord
Pergamon Press, 1979
Buku Teks