ASTRID PUSPITA ANGGRAENI; DHARMAYANTI PRI HANDINI; WAHJU WULANDARI. Analisis Komparatif Abnormal Return Dan Trading Volume Activity Pt Telkom Indonesia (Event Study Pandemi). Conference on Economic and Business Innovation (CEBI), [S. l.], v. 1, n. 1, p. 328–334, 2021. Disponível em: https://jurnal.widyagama.ac.id/index.php/cebi/article/view/115. Acesso em: 15 may. 2025.