SUARDI, Suardi. Effectiveness of Leaflet-Based Education for the Elderly on Knowledge of Covid-19 Prevention: Leaflet Education and COVID-19 Knowledge in the Elderly. Innovative Approaches in Health Science Journal, [S. l.], v. 2, n. 2, p. 37–41, 2025. DOI: 10.64871/2tdc1438. Disponível em: https://journaliahsj.paperhome.id/index.php/IAHSJ/article/view/38.. Acesso em: 27 mar. 2026.