Carwardine, Mark
Collins & Borwn, 1999
Buku Referensi
edited by Greg Gatenby
J.J. Douglas, 1977
Buku Teks SO
Klostermaier, Klaus K.
Oneworld, [Date of publication not identified]
Buku Teks SO
translated, edited with an introd and notes by Lin Yutang
Modern Library, 1948
Buku Teks SO
Richardson, Henry Handel
William Heinemann, 1977
Buku Teks SO