Assegaff, Syafiq B., Hadi Sutopo, Sri Dhuny Atas Asri, and Enrico Adhitya Rinaldi. “Developing Multimedia-Based Learning on Avoiding Imprecise COVID-19 Patients”. European Scientific Journal, ESJ (March 22, 2021): 190. Accessed December 7, 2024. https://eujournal.org/index.php/esj/article/view/14101.