Najiha, A., Herdiani, E. and Tinungki, G. (2023) “THE APPLICATION OF GUMBEL COPULA TO ESTIMATE VALUE AT RISK WITH BACKTESTING IN TELECOMMUNICATION STOCK”, BAREKENG: Jurnal Ilmu Matematika dan Terapan, 17(1), pp. 0245-0252. doi: 10.30598/barekengvol17iss1pp0245-0252.