Hutabarat, Marvin Frans, & Ruth Meivera Siburian.
" PERANCANGAN ALAT UKUR KETINGGIAN AIR MENGGUNAKAN SENSOR HC-SR04 BERBASIS MIKROKONTROLLER ATMEGA8535." <em>Jurnal Darma Agung</em> [Online], 30.1 (2022): 898 - 907. Web. 22 Jul. 2024