Wardani IK. 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). IHASJ [Internet]. 2026 Apr. 30 [cited 2026 Jun. 3];9(1):8-19. Available from: https://publikasi.mercubuana.ac.id/index.php/ihasj/article/view/38093