Setiawati, Diah Ajeng, Guyup Mahardhian Dwi Putra, and Wahyu Kristian Sugandi. 2017. “UJI KINERJA SISTEM PEMANTAUAN VOLUME BIOGAS BERBASIS MIKROKONTROLER ARDUINO PADA BIODIGESTER TIPE FLOATING DRUM [Test Performance of Monitoring System Based on Arduino Microcontroller in Floating Drum Type Biodigester ]”. Jurnal Ilmiah Rekayasa Pertanian Dan Biosistem 5 (2):429-39. https://doi.org/10.29303/jrpb.v5i2.58.