FAJRIAH, Y.; JUMADY, E.; ALAM, S. Abnormal Returns Before and After the January Effect. Atestasi : Jurnal Ilmiah Akuntansi, [S. l.], v. 4, n. 1, p. 45–52, 2021. DOI: 10.57178/atestasi.v4i1.162. Disponível em: https://jurnal.feb-umi.id/index.php/ATESTASI/article/view/162. Acesso em: 15 aug. 2025.