MediGuard: Telegram-Based Smart Medicarion Reminder System with Multi-Stage Alert Mechanism and Voice Notification. EPSILON: Journal of Electrical Engineering and Information Technology, [S. l.], v. 24, n. 1, p. 1–14, 2026. DOI: 10.55893/epsilon.v24i1.156. Disponível em: https://epsilon.unjani.ac.id/epsilon/article/view/156. Acesso em: 8 sep. 2026.