Sa’ari, Che Zarrina. “A Purification of Soul According to Sufis: A Study of Al-Ghazali’s Theory”. Afkar: Jurnal Akidah & Pemikiran Islam 3, no. 1 (June 1, 2002): 95–112. Accessed April 27, 2024. https://ejournal.um.edu.my/index.php/afkar/article/view/6020.