1. Alvesson, Mats. 1996. “Leadership studies: From procedure and abstraction to reflexivity and situation.” The Leadership Quarterly 7(4): 455-485.
2. Augsburger, David. 2000. The New Freedom of Forgiveness. Chicago, IL: Moody Publishers.
3. Bagdonas, Azuolas. 2010. “The practice of state apologies: The role of demands for historical apologies and refusals to apologize in the construction of state identity.” Unpublished PhD Manuscript. Department of International Relations and European Studies, Central European University.
4. Baker, Paul. 23 April 2015. “Obama apologizes after drone kills American and Italian held by Al Qaeda.” The New York Times. Retrieved from https://www.nytimes.com/2015/04/24/world/asia/2-qaeda-hostages-were-accidentally-killed-in-us-raid-white-house-says.html.
5. Basford, Tessa E. 2012. Please Accept My Sincerest Apologies: Examining Follower Reactions to Leader Apology (Doctoral dissertation). Retrieved from ProQuest LLC. (UMI Number: 3498211).