Sya’diyah, H., Sarira, D.P., Mutyah, D., Mayasari, A.C. and Kirana, S.A.C. 2024. Enhancing self-care in elderly patients: the impact of WhatsApp reminder messages at the Heart and Vascular Center. Healthcare in Low-resource Settings. 12, 3 (Jul. 2024). DOI:https://doi.org/10.4081/hls.2024.11752.