Jabarkan Ugi pirsani dari Martin Luther dalam bahasa jawa

Brecht, vol. 1, p. 48

Johann Von Staupitz at Catholic Encyclopedia

Brecht, vol. 1, p. 93

Brecht, vol. 1, pp. 126–27; Luther's Works, vol. 10, pp. 1–2

Brecht, vol. 1, p. 182

Brecht, vol. 1, p. 200

An Open Letter to The Christian Nobility of the German Nation Concerning the Reform of the Christian Estate, 1520 Part 1 Part 2