Tadsuan, Siriwich, and Prasit Sukserm. “Measuring and Controlling the pH of Water by the Internet of Things”. Journal of Advanced Development in Engineering and Science 10, no. 28 (August 28, 2023): 60–78. accessed April 22, 2026. https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/937.