Sitorus, Gabriel, Yolanda Angel Lina Sitorus Yolanda, and Gracia Domini Simarmata Gracia. “Perbandingan Kinerja Model GARCH Dan LSTM Dalam Memprediksi Volatilitas Harian IHSG”. Jurnal CoSciTech (Computer Science and Information Technology) 6, no. 3 (December 26, 2025): 523–529. Accessed May 1, 2026. https://ejurnal.umri.ac.id/index.php/coscitech/article/view/10741.