Dahlan, Abdul Aziz, et al. l, 1997, Encyclopedia of Islamic Law, Cet. I, volume II, Jakarta: PT. Van Hoeve's New Effort.

Djamil, Faturrahman, 1997, Philosophy of Islamic Law, Jakarta: Logos WacanaIlmu.

Effendi, Satria, 2005, Ushul Fiqh, Jakarta: Kencana.

Elal Al-Fasi, Muhammad bin al-Hasan al-Hujwi al Tsa'alabi, 1995, al-Fikr al-Sami fi Tarikh al-Fiqh al Islami, Cet. I, Beirut: Dar al-Kutub al-'Ilmiyyah.

Glasse, Cyril, 1999, Encyclopedia of Islam, trans. Ghufron A. Mas'adi, Jakarta: PT. Raja Grafindo Persada.

Haroen, Nasrun, 1997, Usul Fiqh I, Cet. 2, Jakarta: Logos Discourse on Science.

Hasyim, Muhammad, 1991, Hilah in the Perspective of Social History of Islamic Law, in "Pesantren", No. 2, Vol. VIII.

I'lam al-Muwaqqi'in 'an Rabb al-'Alamin, Juz 3, Beirut: Dar al-Kutubal-'Ilmiyah.

Ibn Qayyam, Shams ad-Din Abi 'Abdillah Muhammad bin Abi Bakr, 1996.

Khadduri, Madjid, 1999, Theology of Justice from an Islamic Perspective, trans. MokhtarZoerni, et al, Surabaya: Gusti's treatise.

Mahmasani, 1996, Philosophy of Law in Islam, trans. Ahmad Sudjono, Bandung: al-Ma'arif.

Mukharom, Mukharom, and Havis Aravik. "Policy of the Prophet Muhammad to Handle Outbreaks of Infectious Diseases and Its Implementation in the Context of Combating Coronavirus Covid 19." SALAM: Social and Cultural Journal of Syar-i 7, no. 3 (March 24, 2020): 239–46. https://doi.org/10.15408/sjsbs.v7i3.15096.

Mun'im, A. Sirry, 1996, History of Islamic Fiqh; An Introduction, Surabaya: Gusti's Treatise.

Muslihuddin, 1997, Philosophy of Islamic Law and Orientalist Thought, trans. Yudian Wahyudi, Yogyakarta: Tiara Wacana

Rosanti, Cholisa. "Review of Islamic Law in Government and MUI Circulars in Responding to the Covid-19 Outbreak After the Enforcement of New Normal." Scientific Journal of Islamic Economics 7, no. 1 (March 23, 2021): 393–402. https://doi.org/10.29040/jiei.v7i1.2157.

Shiddieqy, M. Hasbi, 1997, Introduction to Islamic Law, Second Edition, Semarang: PT. Rizki Putera's library.

Supriatna, Eman. "The Corona Virus Disease Covid 19 Outbreak in the View of Islam." SALAM: Social and Cultural Journal of Syar-i 7, no. 6 (April 14, 2020): 555–64. https://doi.org/10.15408/sjsbs.v7i6.15247.

Susilo, Adityo, Cleopas Martin Rumende, Ceva Wicaksono Pitoyo, Widayat Djoko Santoso, Mira Yulianti, Herikurniawan Herikurniawan, Robert Sinto, et al. “Coronavirus Disease 2019: Recent Literature Review.â€ Indonesian Journal of Internal Medicine 7, no. 1 (April 1, 2020): 45–67. https://doi.org/10.7454/jpdi.v7i1.415.

Syafrida, Syafrida, and Ralang Hartati. "Together Against the Covid 19 Virus in Indonesia." SALAM: Social and Cultural Journal of Syar-i 7, no. 6 (April 14, 2020): 495–508. https://doi.org/10.15408/sjsbs.v7i6.15325.

Takhim, Muhammad. "Saddu al-Dzari'ah in Islamic Muamalah." ACCESS: Journal of Economics and Business 14, no. 1 (March 9, 2020). https://doi.org/10.31942/access.v14i1.3264.