Fadhlurrahman, F., Parnawi, A., Yuliana, A., & Kurniawan, M. (2021). Reconstruction of the Dynamics Thinking and Civilization of Khalifah Umar Bin Khattab in Islamic Education. International Journal on Advanced Science, Education, and Religion, 4(1), 28-40. https://doi.org/10.33648/ijoaser.v4i1.100