Zukrianto SA, Widyanti Rahayu, Siregar D. Peramalan Indeks Saham LQ45 pada Masa Pandemi COVID-19 Menggunakan Analisis Intervensi. JSA [Internet]. 2021 Dec. 31 [cited 2024 Nov. 22];5(2):251-9. Available from: https://journal.unj.ac.id/unj/index.php/statistika/article/view/23827