“Imunosenesens dan Kerentanan Populasi Usia Lanjut Terhadap Coronavirus Disease 2019 (Covid-19)”, IPSSJ, vol. 3, no. 08 Agustus, pp. 386–393, Aug. 2026, Accessed: Oct. 21, 2026. [Online]. Available: https://ipssj.com/index.php/ojs/article/view/1886