Setiawan, Muhammad. “The Nature of the Virtuous Soul in Al-Ghazali and Hamka”. Kalimah: Jurnal Studi Agama dan Pemikiran Islam 17, no. 1 (August 15, 2019). Accessed January 6, 2025. https://ejournal.unida.gontor.ac.id/index.php/kalimah/article/view/2852.