Archer, Geoffrey
Arrow , 2002
Buku Teks
Hall, D.G.E., author
Hutchinson's University Library, 1950
Buku Teks
Hall, D.G.E., author
University of Pennsylvani Press, 1971
Buku Teks
Hall, D.G.E., author
London, Hutahinson University Library, (1960)
Buku Teks
Archer, WG
London George Allen & Unwin ltd [1959]
Buku Teks