High-Efficiency Solar-Piezo Hybrid Energy Harvester for Long-Term Autonomous Operation of Smart Agriculture Sensor Nodes. Progress in Electronics and Communication Engineering, [S. l.], v. 3, n. 2, p. 36–43, 2025. DOI: 10.31838/ECE/03.02.06. Disponível em: https://ecejournals.in/index.php/PECE/article/view/429.. Acesso em: 3 nov. 2025.