“THE EFFECT OF GOLD PRICE CHANGES, USD/IDR EXCHANGE RATE CHANGES AND BANK INDONESIA (BI) RATE ON JAKARTA COMPOSITE INDEX (JCI)’S RETURN AND JAKARTA ISLAMIC INDEX (JII)’S RETURN” (2018) Jurnal Manajemen dan Kewirausahaan, 20(1), pp. 45–52. doi:10.9744/jmk.20.1.45-52.