İşleyen Şakir, Zebari A, Jameel H. An Analysis of the COVID-19 Agenda Using Big Data from Social Media: A Comparative Study across Countries with R Programming. JD [Internet]. 4Mar.2026 [cited 10Mar.2026];8(1):20-2. Available from: https://ejurnal.undana.ac.id/index.php/JD/article/view/26853