Sensarma, P.
Naya Prokash, 1977
Buku Teks
Fuller, John Frederick Charles
Funk and Wagnalls, 1955
Buku Teks
Baclagon, Uldarico S.
Saint Mary's Pub, 1975
Buku Teks
by Peter Dennis, Jeffrey Grey, Ewan Morris, Robin Prior
Oxford University Press, 1995
Buku Referensi
Lee, J.E.
Australian War Memorial, 1952
Buku Teks