Bidayati, Utik, Armanu Thoyib, Siti Aisjah, și Mintarti Rahayu. „The Impact of Muhammadiyah’ Leadership Style and Total Quality Management on Competitive Advantage in Universities – Case on Universities in Yogyakarta, Indonesia”. Revista de Cercetare si Interventie Sociala 81 (iunie 30, 2023): 62–84. Data accesării noiembrie 7, 2026. https://www.rcis.ro/journal/article/view/3129-the-impact-of-muhammadiyah-leadership-style-and-total.