Houchens, Gary W., Janet Hurt, Rebecca Stobaugh, and John L. Keedy. “Double-Loop Learning: A Coaching Protocol for Enhancing Principal Instructional Leadership”. Qualitative Research in Education 1, no. 2 (October 30, 2012): 135–178. Accessed March 29, 2024. https://www.hipatiapress.com/hpjournals/index.php/qre/article/view/287.