SHOLICHAH, H.; JOHAN, S. The Effect of First Case Covid-19 Announcement on Average Trading Volume Activity of Pharmaceutical Sector Companies. Jurnal Manajemen Bisnis dan Kewirausahaan, Jakarta, Indonesia, v. 6, n. 2, p. 218–224, 2022. DOI: 10.24912/jmbk.v6i2.11673. Disponível em: https://journal.untar.ac.id/index.php/jmbk/article/view/11673. Acesso em: 5 jul. 2024.