Hermawan, Dicky, Jamaluddin, and Rabby Nazli. “Design and Development of an Internet of Things-Based Soil PH and Moisture Monitoring System for Oil Palm Plants”. Jurnal SINTIKA (Jurnal Sistem Informasi, Teknik Informatika, dan Sistem Komputer) 2, no. 3 (September 29, 2026): 246–252. Accessed October 11, 2026. https://yasiinpublisher.org/index.php/SINTIKA/article/view/151.