Yuliani, P., Hardiansyah, H. and Albart, N. 2025. Portfolio Efficiency Analysis of UNVR and SMGR Using the Efficient Frontier Approach: A Comparative Study in the Framework of Indonesia’s Green Economy Commitment. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE). 8, 3 (Oct. 2025), 12202-12211. DOI:https://doi.org/10.31538/iijse.v8i3.8067.