“Rancang Ketinggian Bangun Alat Pendeteksi Banjir Secara Dini Menggunakan Mikrokontroler Atmega8535 Dan Sensor Ultrasonik Srf05-Hy”. Magnetic: Research Journal of Physics and It’s Application 1, no. 2 (September 28, 2021): 66–73. Accessed May 4, 2024. https://ejurnal.unisap.ac.id/magnetic/article/view/111.