Ananda, Z., and N. Nurmasyitah. “Pengembangan Prototipe Alat Pendeteksi Banjir Sederhana”. GRAVITASI: Jurnal Pendidikan Fisika Dan Sains, Vol. 2, no. 01, Oct. 2019, pp. 7-12, https://ejurnalunsam.id/index.php/JPFS/article/view/1701.