Rizkia, A. A., & Husain, A. (2024). Design Of A Monitoring System For Potential Of Hydrogen (Ph) In Fish Aquarium Water Based On ESP-32 Microcontroller . JESII: Journal of Elektronik Sistem InformasI, 2(1), 189–199. https://doi.org/10.31848/jesii.v2i1.3418