Suryomurti, W., M. Surur, N. Akbar, and S. Maulida. “A Data Envelopment Analysis of Sharia Stock Listed Companies on the Jakarta Islamic Index”. Jurnal Ekonomi & Keuangan Islam, vol. 12, no. 1, Feb. 2026, pp. 130-45, doi:10.20885/JEKI.vol12.iss1.art8.