Review Distinguishing Sources by Type.
Read the following articles in the University Library. 
Zimmerman, E. L. (2018). What’s under the hood? The mechanics of leadership versus management. Supervision, 79(10), 13–16. 
Porr, D. (2010). Toward more inclusive leadership pedagogy: Expanding the management versus leadership comparison. International Journal of Learning, 17(5), 133–141.
Analyze and evaluate the articles for their credibility as doctoral research sources.
Complete the Source Comparison Matrix.