O`Connor, Mark
Megalong Book, 1988
Buku Teks SO
Walker, Bryce S.
Time-Life Books, 1973
Buku Teks SO
Llewellyn, Kate
Globe Press, 1990
Buku Teks SO
Tian, Fang
China Intercontinental Press, 2009
Buku Teks
Raggatt, H.G.
Lansdowne Press, 1968
Buku Teks SO