Hidayatullah, M., S. Sofyan, P. Ali Topan, T. Andriani, and N. Nurhairunnisah. “Monitoring System of Water Quality on Hydroponic Planting Media Using Total Dissolved Solid (TDS) Sensor Based Arduino Uno R3”. JURNAL ILMU FISIKA, vol. 14, no. 2, Aug. 2022, pp. 108-15, doi:10.25077/jif.14.2.108-115.2022.