Adiputra D, Kristanto T, Albana AS, Samuel GW, Andriyani S, Kurniawan CJA, et al. Water Quality Monitoring with Regression Based PPM Sensor for Controlling Hydroponic Dissolved Nutrient. J. Ilm. Tek. Elektro Komput. Dan Inform [Internet]. 2023 May 2 [cited 2024 Nov. 21];9(2):298-306. Available from: https://journal.uad.ac.id/index.php/JITEKI/article/view/25915