Azmilah Hapidhatur Rahmah, et al. “Analisis Volatilitas Dan Peramalan Return Saham Perusahaan Asuransi Menggunakan Model Garch: Studi Kasus PT Maskapai Reasuransi Indonesia Tbk”. Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences, vol. 5, no. 4, July 2026, pp. 887-00, doi:10.53696/venn.v5i4.511.