Heriyanto, Husain. “SOLIPSISME DAN FENOMENALISME: DUA KUTUB EKSTRIM KANTIAN YANG MENGOYAK SPIRITUALITAS”. Kanz Philosophia: A Journal for Islamic Philosophy and Mysticism 3, no. 1 (June 21, 2013): 35–58. Accessed January 10, 2025. https://journal.sadra.ac.id/ojs/index.php/kanz/article/view/50.