HAFIDH, J. A. Simulasi Sistem Monitoring Ketinggian Air sungai Di Lodagung menggunakan Sensor HC-SR04 dengan Web Service REST API. Jurnal Informatika Polinema, [S. l.], v. 7, n. 4, p. 33–42, 2021. DOI: 10.33795/jip.v7i4.480. Disponível em: http://114.6.41.75/index.php/jip/article/view/2501. Acesso em: 11 sep. 2025.