Irfanullah, I. “EFFICIENCY OF WAQF-BASED SOCIAL ENTREPRENEUR MODEL BY BAITUL WAKAF INDONESIA: SOCIAL RETURN ON INVESTMENT (SROI) APPROACH”. Labuan E-Journal of Muamalat and Society (LJMS), vol. 19, no. 2, Dec. 2025, pp. 113-24, doi:10.51200/ljms.v19i2.6077.