“PERAMALAN VOLATILITAS RETURN SAHAM FORE COFFEE MENGGUNAKAN MODEL ARCH/GARCH” (2026) Musytari : Jurnal Manajemen, Akuntansi, dan Ekonomi, 25(2), pp. 4201–4210. Available at: https://ejournal.cibinstitut.com/index.php/musytari/article/view/7107 (Accessed: 24 October 2026).