A. Khairiati, R. Budiarti, and M. K. Najib, “GENERALIZED NESTED COPULA REGRESSION TO UNVEIL THE IMPACT OF EXCHANGE RATES AND NIKKEI 225 ON BANK MANDIRI STOCK PRICE”, BAREKENG: J. Math. & App., vol. 20, no. 2, pp. 1167–1184, Jan. 2026.