Analisis Hubungan Harga Saham, Harga Emas, Nilai Tukar Rupiah-Dolar Amerika Serikat, dan Suku Bunga Indonesia Pada Periode 2010-2020: Dengan Kerangka Kointegrasi dan Kausalitas Granger = Relationship Analysis of Stock Price, Gold Price, Exchange Rate Rupiah-US Dollar, and Interest Rate in Indonesia for Period 2010-2020: Cointegration and Granger Causality Framework