WARDANI, Indri Kusuma. Comparative Analysis Of Stock Prices and Trading Volume of Pharmaceutical Companies Before and After The Covid-19 Pandemic (Case Study Of Companies Listed on The IDX 2018-2023). International Humanities and Applied Science Journal, Jakarta, Indonesia, v. 9, n. 1, p. 8–19, 2026. Disponível em: https://publikasi.mercubuana.ac.id/index.php/ihasj/article/view/38093. Acesso em: 3 jun. 2026.