Rafni, T. A., and D. Agustina. “USE OF GLUE VALUE AT RISK FOR OPTIMAL PORTFOLIO RISK MEASUREMENT WITH THE SINGLE INDEX MODEL METHOD”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan, Vol. 20, no. 2, Jan. 2026, pp. 1251–1262, doi:10.30598/barekengvol20iss2pp1251–1262.