Verralls, Sylvia, author
Churchill Livingstone , 1989
Buku Teks
Chaffee, Ellen E., author
Lippincott , 1969
Buku Teks
Jackson, Sheila M.
The English Language Book, 1979
Buku Teks
Guyton, Arthur C., author
W.B. Saunders , 1976
Buku Teks
Guyton, Arthur C., author
W.B. Saunders , 1986
Buku Teks