Ching, S. L. ., T. F. . Siang, A. . Chai, and C. P. . Ching. “Design and Develop an IoT Automated Nutrient Control in a Hydroponic System”. Future Sustainability, vol. 3, no. 3, Apr. 2025, pp. 18-25, https://fupubco.com/fusus/article/view/320.