Moh. Kamil Fikri, Najlatun Naqiyah, Titin Indah Pratiwi, and Wiryo Nuryono. “The Concept and Effectiveness of Self-Purification in Spirituality from the Perspective of the Sufis: A Literature Review of the Thoughts of Al-Ghazali and Said Hawwa”. G-Couns: Jurnal Bimbingan dan Konseling 9, no. 3 (August 28, 2025): 2458–2473. Accessed April 15, 2026. https://journal.upy.ac.id/index.php/bk/article/view/7749.