Budiman, M., E. Partogi, A. A. . Kristi, P. Anggara, and N. S. Aminah. “Study of the Effect of Physical Parameters on Commercial Hydroponics Based on Internet of Things (IoT): A Case Study of Bok Coy Plants (Brassica Rapa) and Water Spinach (Ipomoea Aquatica)”. Journal of Mathematical and Fundamental Sciences, vol. 54, no. 2, Apr. 2023, pp. 275-89, doi:10.5614/j.math.fund.sci.2022.54.2.5.