1. Adams, A. W. (2013). Shepherd leadership of Church of God pastors and how this relates to ministerial effectiveness (Publication No. 3570373) [Doctoral Dissertation, University of Phoenix]. ProQuest Dissertations and Theses Global.
2. Adams, J. E. (1996). Hebrews, James, I & II Peter, Jude Commentary. Institute for Nouthetic Studies.
3. Ajayi, S. D. (2018). An application of Jesus’ leadership style in contemporary Christian ministry. Journal of Biblical Theology, 1(1), 41–65.
4. Akin, D. L., & Pace, R. S. (2017). Pastoral theology: Theological foundations for who a pastor is and what he does. B & H Publishing Group.
5. Anum, E. N. B., & Quaye, E. (2016). Intercultural reading of John 10:1–21: The shepherd-sheep metaphor as a leadership-followership model. Institute of Mennonite Studies.