1. Abdulsater, Hussein Ali (2017), Shi’i Doctrine، Mu’tazili Theology: al-Sharif al-Murtada and Imami Discourse , Scotland, Edinburgh University Press.
2. Afsaruddin، Asma (2018), “Alternative Patterns of Legitimacy”, in: A. Salvatore, R. Tottoli, B. Rahimi, M. F. Attar & N. Patel (Eds.), The Wiley Blackwell History of Islam, pp. 235-252, John Wiley & Sons Ltd. in: https://doi.org/10.1002/9781118527719.ch11.
3. Alshaar، Nuha (2020), “Knowledge in the Buyid Period: Practices and Formation of Social Identity”, in: S. Günther (Ed.), Knowledge and Education in Classical Islam: Religious Learning between Continuity and Change (2 vols), pp. 668-683, BRILL,in: https://doi.org/10.1163/9789004413214_030.
4. Alshaar, Nuha (2022), “Baghdād under Būyid Rule”, in: J. Scheiner & I. Toral (Eds.), Baghdād: From Its Beginnings to the 14th Century, pp. 194-226, BRILL, in: https://doi.org/10.1163/9789004513372_009.
5. Amir Arjomand, Saïd (2016), Sociology of Shi‘ite Islam: Collected Essays, Leiden, Brill, in: https://doi.org/10.1163/9789004326279.
6. Azzam, Abdul Rahman Hassan (2014), Saladin: The Triumph of the Sunni Revival, in: Islamic Texts Society.
7. Azzam, Abdul Rahman Hassan (2016), “Sources of the Sunni Revival: Nizam u-Mulk & the Nizamiyya: An 11 th Century response to Sectarianism”, The Muslim World, no. 106(1), pp.97-108, in: https://doi.org/10.1111/muwo.12126.
8. Black, Antony (2011), “The Theory of the Caliphate”, in: The History of Islamic Political Thought, pp. 81-90, Scotland, Edinburgh University Press, in: https://doi.org/10.1515/9780748647569-013.
9. Busse, Heribert (1975), “IRAN UNDER THE BŪYIDS”, in: R. N. Frye (Ed.), The Cambridge History of Iran, Vol. 4, pp. 250-304, England, Cambridge University Press, in: https://doi.org/10.1017/CHOL9780521200936.008.
10. Cahen, Claude (1986), “BUWAYHIDS or BUYIDS”, in: Encyclopaedia of Islam, Vol. I, (2nd ed.), pp. 1350-1357, Leiden, Brill, in: http://dx.doi.org/10.1163/1573-3912_islam_SIM_1569.
11. Crone, Patricia (2004), Medieval Islamic Political Thought, Scotland, Edinburgh University Press.
12. El-Hibri, Tayeb (2021), The Abbasid Caliphate: A History, England, Cambridge University Press.
13. Ende, Werner (1985), “Sunniten und Schiiten im 20. Jahrhundert”, Saeculum، vol. 36(2-3), pp. 187-200.
14. Gibb، Hamilton Alexander Rosskeen (1982), “Al-Mawardi’s Theory of the Caliphate”, in: Studies on the Civilization of Islam, pp. 151-165.
15. Gleave, Robert (2019), “Quietism and Political Legitimacy in Imāmī Shīʿī Jurisprudence: al-Sharīf al-Murtaḍā’s Treatise on the Legality of Working for the Government Reconsidered”, in: S. Al-Sarhan (Ed.), Political Quietism in Islam: Sunni and Shi’i Practice and Thought, Landon, Bloomsbury Publishing, pp. 99-128.
16. Griffel, Frank (2006), “Sunni Revival”, in: J. W. Meri (Ed.), Medieval Islamic Civilization: An Encyclopedia, England, Routledge, pp. 782-783.
17. Hallaq, Wael B. (2004), The Origins and Evolution of Islamic Law, England, Cambridge University Press, in: https://doi.org/10.1017/CBO9780511818783.
18. Hallaq, Wael B. (1984), “Was the Gate of Ijtihad Closed?”, International Journal of Middle East Studies, vol. 16(1), pp. 3-41, in: https://doi.org/10.1017/S0020743800027598.
19. Jahanbakhsh, Forough (2020), “Rational Shari’ah: Ahmad Qabel’s Reformist Approach”, in: Religions, vol. 11, Issue 12, in: https://doi.org/10.3390/rel11120665.
20. Jiwa, Shainool (1992), “Fāṭimid-Būyid Diplomacy During The Reign of Al-ʿazīz Billāh (365/975—386/996)”, Journal of Islamic Studies, vol. 3(1), pp. 57-71.
21. Kazemi Moussavi, Ahmad (2001), “Sunni-Shi’i Rapprochement (Taqrib)”, in: L. Clarke (Ed.), Shi’ite Heritage: Essays on Classical and Modern Traditions, Global Publications pp. 301-315.
22. Madelung, Wilferd (1980), “A Treatise of the Sharīf al-Murtaḍā on the Legality of Working for the Government (Mas’ala fī 'l-’amal ma’a 'l-sulṭān)”, Bulletin of the School of Oriental and African Studies, London, University of London، vol. 43(1), pp.18-31.
23. Melchert, Christopher (1997), The Formation of the Sunni Schools of Law: 9th-10th Centuries C.E., Leiden, Brill.
24. Mottahedeh, Roy P. (1980), Loyalty and Leadership in an Early Islamic Society, USA, Princeton University Press.
25. Newman, Andrew J. (2013), Twelver Shiism: Unity and Diversity in the Life of Islam، 632 to 1722, Scatland, Edinburgh University Press, in: https://doi.org/10.1515/9780748631902.
26. Newman, Andrew J. (2014), “Minority Reports’: Twelver Shiʿi Disputations and Authority in the Būyid Period”, in: F. Daftary & G. Miskinzoda (Eds.), The Study of Shi’i Islam: History، Theology، and Law, pp. 443-452, I.B.Tauris press.
27. Stewart, Devin J. (2021), “The Historical Roles of Jihād in Sunnī-Shīʿī Relations”, The Journal of the Middle East and Africa, vol. 12(2), pp. 127-156, in: https://doi.org/10.1080/21520844.2021.1898272.
28. Stewart, Devin J. (1998), Islamic Legal Orthodoxy: Twelver Shiite Responses to the Sunni Legal System, USA, University of Utah Press.
29. Tholib, Udjang (2002), The reign of the caliph al-Qādir billāh (381/991-422/1031) Canada, McGill University.