Hummel, Reinhart; Linda W. Duddy (translator) (1984). "Guru, Miracle Worker, Religious Founder: Sathya Sai Baba". Dialogcentret Article in Update IX 3, September 1985, originally published in German in Materialdienst der EZW, 47 Jahrgang, 1 February 1984. This muddled reference needs converting to cite journal.