Matengenezo ya Kiprotestanti
Spitz, Lewis W. The Renaissance and Reformation Movements: Volume I, The Renaissance. Revised Edition. St. Louis: Concordia Publishing House, 1987. ISBN 0-570-03818-9; The Renaissance and Reformation Movements: Volume II, The Reformation. (2nd ed. Concordia Publishing House, 1987). ISBN 0-570-03819-7.