Ab Majid, Arfah, and Jia Lie. “Sufi Chanting and Altered State of Consciousness: A Preliminary Review”. Sains Insani 10, no. 2 (November 30, 2025): 28–36. Accessed December 4, 2025. https://sainsinsani.usim.edu.my/index.php/sainsinsani/article/view/748.