MUHAMMAD, Brilliant Yudha; YANUARTI, Ika. PERBEDAAN ABNORMAL RETURN DAN TRADING VOLUME ACTIVITY SAHAM SEBELUM RAMADAN, SELAMA RAMADAN, DAN SESUDAH RAMADAN : STUDI PADA PERUSAHAAN LQ45 YANG TERCATAT DI BEI PERIODE 2018 – 2019. Ultima Accounting : Jurnal Ilmu Akuntansi, [S. l.], v. 11, n. 2, p. 222–243, 2020. DOI: 10.31937/akuntansi.v11i2.1475. Disponível em: https://ejournals.umn.ac.id/index.php/Akun/article/view/1475. Acesso em: 8 nov. 2025.