Indra Nur Fauzi, Fendy Suhariadi, Albertus Eka Putra Hariyanto, and Erlyn Yuly Astuti, “Performance of Muhammadiyah Hospital as Social Entrepreneurship Organization: The Role of Leadership Effectiveness”, Media Publ. Promosi Kesehat. Indones, vol. 8, no. 1, pp. 56-69, Jan. 2025.