HALWA ANNISA KHOIRI; WILDANUL ISNAINI. Analisis Pengaruh Covid-19 Dan Pembatasan Sosial Berskala Besar (PSBB) Terhadap Fluktuasi IHSG. Limits: Journal of Mathematics and Its Applications, [S. l.], v. 19, n. 1, p. 1–13, 2022. Disponível em: https://journal.its.ac.id/index.php/limits/article/view/5329. Acesso em: 6 dec. 2025.