Rahim, M.R. and Mat Akir, R. (2021) “Automated pH Monitoring and Controlling for Hydroponics Cultivation”, Evolution in Electrical and Electronic Engineering, 2(2), pp. 775–782. Available at: https://periodical.uthm.edu.my/index.php/eeee/article/view/3964 (Accessed: 15 August 2026).