Efendi, L. and Wildian, W. 2018. Rancang Bangun Sistem Deteksi dan Informasi Lokasi Banjir Berbasis GSM. Jurnal Fisika Unand. 7, 4 (Oct. 2018), 328–333. DOI:https://doi.org/10.25077/jfu.7.4.328-333.2018.