Barrett, John
Allen & Unwin, 1995
Buku Teks SO
Graaff, Nell van de
University of Queensland press , 1989
Buku Teks SO
Jacob, Alaric
Collins, 1944
Buku Teks SO
compiled by the Youth Divison of Soka Gakkai; translated and edited by Richard L. Gage
Japan Times, 1982
Buku Teks SO
Kennedy, John
Hutchinson, 1957
Buku Teks SO