MANALU, Istas Pratomo. LoRa-based IoT Device for Water Quality Monitoring (Case Study: Lake Toba). Piston: Journal of Technical Engineering, [S. l.], v. 7, n. 2, p. 75–81, 2024. DOI: 10.32493/pjte.v7i2.35854. Disponível em: https://openjournal.unpam.ac.id/index.php/Piston/article/view/35854. Acesso em: 31 jul. 2024.