Winanti, Aris and Sutanto, Aftoni and Hidayat, Taufik (2021) ANALISIS ABNORMAL RETURN SAHAM PERUSAHAAN TERCATAT INDEKS LQ-45 SEBELUM DAN SETELAH PENGUMUMAN KASUS PERTAMA COVID-19 DI INDONESIA. 1ST NATIONAL COLLOQUIUM ON BUSINESS MANAGEMENT (NCBM). (Unpublished)