Abi Sopyan Febrianto. “Sintesa Konsep Spiritual Leadership Dan Islamic Leadership”. Coopetition : Jurnal Ilmiah Manajemen 11, no. 3 (November 1, 2020): 239–246. Accessed November 21, 2024. https://journal.ikopin.ac.id/index.php/coopetition/article/view/114.