Sihotang, T., and N. V. Sihotang. “Internet of Things (IoT) Based Drip Irrigation Optimization to Reduce the Impact of Drought on Tomato”. Contributions of Central Research Institute for Agriculture, vol. 19, no. 3, July 2025, pp. 127-33, https://ejournal.cria.or.id/index.php/ccria/article/view/303.