Zukrianto SA, Widyanti Rahayu, Siregar D. Peramalan Indeks Saham LQ45 pada Masa Pandemi COVID-19 Menggunakan Analisis Intervensi. JSA [Internet]. 2021Dec.31 [cited 2025May2];5(2):251- 259. Available from: http://103.8.12.212:33180/unj/index.php/statistika/article/view/23827