Bachtiar, M. Azzam, and Purnomo Purnomo. “How Transformational Leadership Builds Sustainable Competitive Advantage in Islamic Educational Institutions: An Integrated Four-Dimensional Leadership Framework”. Edunesia : Jurnal Ilmiah Pendidikan, vol. 7, no. 3, Sept. 2026, pp. 2065-82, doi:10.51276/edu.v7i3.1851.