Elizabeth Ann Mackay
Martin Luther's attacks on the three walls of the Romanists were studied carefully and refuted using the Bible and Catholic interpretations to counterargue.
Mitchell, Taryn E.
"Get Out of Purgatory Free: This Indulgence May be Kept Until Needed or Sold,"
Line by Line: A Journal of Beginning Student Writing: Vol. 8:
1, Article 4.
Available at: https://ecommons.udayton.edu/lxl/vol8/iss1/4