Barnard, Marjorie
Frederick A. Praeger, 1966
Buku Teks
edited by F.K. Crowley
Heinemann, 1984
Buku Teks
edited by F.K. Crowley
William Heinemann, 1974
Buku Teks
Ritchie, John C., author
William Heinemann, 1975
Buku Teks
Younger, R. M.
Rigby, 1975
Buku Teks