Alexander (1891). In Topica. (Edit: M. Wellies). New York: Cornel University Press.
Anvari, S. (2004). Fuzzy Thinking and Its Application in Philosophy. Allameh, 4(3-4), 176-196. [In Persian]
Bishop, B. (2006). Sāyeh-hā-ye Vāqeʿiyat. (Translate: A. Sotoudeh Choobari). Tehran: Roshanegaran va Motaleʿat-e Zanan. [In Persian]
Dubios, D. & Prade, H. (1980). Fuzzy Sets Systems Theory and Applications. New York: Academic Press.
Ghorbāni, Rahi. (2006). Tashkik-e Fāzi. Maʿrefat-e Falsafi, 3(3), 41-78. [In Persian]
Haack, S. (2003). Falsafeh-ye Manteq. (Translate: S. M. A. Hojjati). Qom: Ta-Ha Publications. [In Persian]
Kermāni, T. & Yaqoubian, M. H. (2011). Fuzzy Thinking and Sadrian Philosophy. Kheradnāmeh, 17(64), 63-80. [In Persian]
Klir, G. J. & Yuan, B. (1996). Fuzzy Sets, Fuzzy Logic and Fuzzy Systems: Selected. Singapore: World Scientific.
Klir, G. J. (2002). Teori-ye Majmuʿeh-hā-ye Fāzi (Oṣul va Kārbordhā). (Translate:F. Zarandi). Tehran: Amir Kabir University Press. [In Persian]
Kosko, B. (1998). Tafakor-e Fāzi. (Translate: A. Ghaffāri). Tehran: Khājeh Naṣir al-Din Ṭusi University. [In Persian]
McNeil, D. & Freiberger, Paul (1993). fuzzy logic. New York: Touchstone.
Mosavimadani, F. (2016). Mabāni va Kārbord-e Naẓariyye-ye Fāzi. Tehran: Alzahra University. [In Persian]
Obudiyyat, A. R. (2009). Daramadi bar Neẓām-e Ḥekmat-e Ṣadrāʾī. Tehran: SAMT. [In Persian]
Sadr al-Din Shirazi, M. I. (Mulla Sadra) (1981/a). Al-Ḥikma al-Mutaʿāliya fī al-Asfār al-ʿAqliyya al-Arbaʿa. Beirut: Dār al-Iḥyāʾ al-Turāth al-ʿArabī.
Sadr al-Din Shirazi, M. I. (Mulla Sadra) (1981/b). Al-Shawāhed al-Rubūbiyya. (Edit: S. J. D. Āshtiyānī). Mashhad: Al-Markaz al-Jāmeʿ li al-Nashr. [In Persian]
Sadr al-Din Shirazi, M. I. (Mulla Sadra) (2002). Al-Mashāʿer. (Edit: H. Corbin). Tehran: Bonyād-e Ḥekmat-e Eslāmi-ye Ṣadrā. [In Persian]
Ṭabāṭabāʾī, M. H. (2007). Nehāyat al-Ḥekma. Qom Imam Khomeini Educational and Research Institute Publications. [In Persian]
Tanaka, K. (1996). An Introduction to Fuzzy Logic Practical Applications. New York: Springer.
Vakili, H. & Goodarzi, P. (2019). The Theory of Unity of Being from the Perspective of Logic and Fuzzy Thinking. Pazhoheshnāmeh-ye ʿErfān, 10(20), 235-256. [In Persian]
Yager, R. R. (2000). Toward a theory of fuzzy veristic variables. (Edit: B. B. Meunier, R. R. Yager & L. A. Zadeh), Advances in fuzzy systems—Applications and Theory, Vol. 20. World Scientific Publishing
Zahedi, M. (1999). Teori-ye Majmuʿeh-hā-ye Fāzi, Kārbordhā-ye Ān. Tehran: Nashr-e Ketāb-e Dāneshgāhi. [In Persian]
Zimmerman, H. J. (1991). Fuzzy Set Theory and its Application. Boston: European journal Operation, Kluwer Academic Press.