Shiddiq, A., N. Ulfatin, A. Imron, I. Arifin, and A. F. Ubaidillah. “How the Transformational-Collective Leadership Shapes a Religious-Based Educational Organizational Culture?”. International Journal of Health Sciences, vol. 5, no. S1, Mar. 2021, pp. 718-36, doi:10.53730/ijhs.v5nS1.14253.