Sujana, Shifa Nisrina, and Sabiq Muhammad Ul-Haq. “The Recontextualization of the Spiritual Value Fasting in Improving the Body’s Immune System During the Covid 19 Pandemic”. Islam Transformatif : Journal of Islamic Studies, vol. 5, no. 2, Dec. 2021, pp. 112-23, doi:10.30983/it.v5i2.4967.