Matussein Haji Jumat. “The Doctrine of Wahdatul Wujud: The Issue of Contamination of the Study of Islamic Sufism With Greek Philosophy”. Journal of Social Transformation and Regional Development, vol. 2, no. 3, Jan. 2021, pp. 214-21, https://publisher.uthm.edu.my/ojs/index.php/jstard/article/view/8028.