“Peningkatan Pengetahuan Kesehatan Remaja Selama Pandemi Covid-19 Di SMA Medan ”. Jurnal Masyarakat Madani Indonesia 1, no. 2 (July 15, 2022): 63–67. Accessed October 15, 2026. https://syadani.onlinelibrary.id/index.php/JS/article/view/10.