Ajmilatunnisa, Syifa, et al. “Penerapan Model Geometric Brownian Motion Dalam Memprediksi Harga Penutupan Saham Sektor Asuransi Di Bursa Efek Indonesia (Studi Kasus: PT. Asuransi Multi Artha Guna Tbk)”. Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences, vol. 5, no. 4, July 2026, pp. 861-72, doi:10.53696/venn.v5i4.514.