“Development of Hydroponics by Using PH Level and Water Temperature, as well as Micro-Controller and Sensor Devices” (2020) Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research, 2(1). Available at: https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/1386 (Accessed: 16 December 2025).