Siren, Nor Raudah. “Diri: Satu Pemahaman Falsafah Muhammad Iqbal Dalam Asrari-Khudi”. Jurnal Usuluddin 13 (June 30, 2001): 37–50. Accessed September 2, 2024. http://adum.um.edu.my/index.php/JUD/article/view/4004.