Elderly Self-Help Groups: A Community-Based Education and Peer Support Program for Hypertension Control, Supporting SDG 3 on Health and Well-beingLita Heni Kusumawardani, Azera Hasra, Endang Triyanto and Asep IskandarE3S Web Conf., 609 (2025) 04005DOI: https://doi.org/10.1051/e3sconf/202560904005