MUHAMMAD, E. S.; SULISTYOWATI, E. . Analisis Abnormal Return, Trading Volume Activity Sebelum dan Sesudah Pernyataan Pers Terkait Pelonggaran Penggunaan Masker. JURNAL EKONOMI, MANAJEMEN, BISNIS, DAN SOSIAL (EMBISS), [S. l.], v. 3, n. 3, p. 316–326, 2023. Disponível em: https://embiss.com/index.php/embiss/article/view/232. Acesso em: 23 aug. 2025.