Sylvan Press, 1949
Buku Teks
Banks, J. A.
Routledge & Kegan Paul Limited, 1954
Buku Teks
edited by Patrick Brantlinger and William B. Thesing
Blackwell, 2002
Buku Referensi
Bryant, Arthur
The Albatross MCMXL.VII, 1947
Buku Teks
Cronin, James E.
Routledge, 1991
Buku Teks