Demirli, E. 2010. An assessment of discursive changes in Islamic metaphysics -Thubūt as an interpretation of the concept of possibility or nonexistence and the nonexistence of nonexistence-. Ilahiyat Studies. 1, 1 (Oct. 2010), 37–63. DOI:https://doi.org/10.12730/13091719.2010.11.4.