[1]
Lena Yulistia Ningsih, Relita Buaton, and Milli Alfhi Syari, “IoT-Based Monitoring System for pH and Electrical Conductivity of Hydroponic Nutrient Solutions”, j. of artif. intell. and eng. appl., vol. 5, no. 3, pp. 4716–4721, Jun. 2026.