Analisis Kedatangan Vaksin Sinovac Covid-19 terhadap Trading Volume Activity pada Indeks LQ-45. Jurnal Proaksi [Internet]. 30 September 2023 [dikutip 20 November 2025];10(3):411-22. Tersedia pada: https://e-journal.umc.ac.id/index.php/JPK/article/view/4528