Keirstead, Burton Seely
Oxford University Press, 1956
Buku Teks SO
Harrison, W.E.C.
Oxford University Press, 1957
Buku Teks SO
Soward, F.H.
Oxford University Press, 1950
Buku Teks SO
Spencer, Robert A.
Oxford University Press, 1959
Buku Teks SO
Lingard, C. Cecil
Oxford University Press, 1950
Buku Teks SO