Casnadi, Casnadi. “CONCEPTS AND IMPLEMENTATION OF STATE FINANCE DURING THE ERA OF THE RIGHTLY GUIDED CALIPHS (AL-KHULAFĀ’ AL-RĀSHIDŪN)”. Ad-Deenar: Jurnal Ekonomi Dan Bisnis Islam, vol. 10, no. 01, Apr. 2026, pp. 231-42, doi:10.30868/ad.v10i01.10059.