Septryanti, Ade, et al. “Sistem Pendeteksi Banjir Dengan Sensor Ultrasonic Berbasis Mikrokontroller Di Kota Pangkalpinang”. Jurnal Transformatika, vol. 20, no. 1, July 2022, pp. 22-31, https://doi.org/10.26623/transformatika.v20i1.3672.