“Aplikasi Sensor Soil Moisture YL-69 Dan Sensor Ultrasonic HC-SR07 Pada Smart Irrigation”. Jurnal Ilmiah Teknologi Pertanian Agrotechno 6, no. 1 (April 30, 2021): 32–38. Accessed August 16, 2026. https://ejournal1.unud.ac.id/index.php/agrotechno/article/view/3721.