Clark, Grahame
Cobbett Press, 1946
Buku Teks
edited by John Louis Beatty, Oliver A. Johnson
Prentice-Hall, 1966
Buku Teks
Ikeda, Daisaku, 1928-, author
British Academic Press, 2004
Buku Teks
Oakland, John, author
London; New York Routledge 1992,
Buku Teks
editor, Wiendu Nuryanti
Gadjah Mada University Press , 1996
Buku Referensi