Basharin, Pavel V. (April 1, 2018). "The Problem of Free Will and Predestination in the Light of Satan's Justification in Early Sufism". English Language Notes. Durham, North Carolina: Duke University Press. 56 (1): 119–138. doi:10.1215/00138282-4337480.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)