Fremantle, Anne, author
Studio Publications in association with Crowell, 1954
Buku Teks
Meridians, [196?]
Buku Teks
Berbar, Halim, author
Times Editions-Marshall Cavendish, 2004
Buku Referensi
Spendlove, F. St. G.
Ryerson Press, 1958
Buku Teks
Wong, S. L., author
Periplus Editions, 2000
Buku Referensi