Sulastri, Ni Nyoman, Sakae Shibusawa, and Masakazu Kodaira. “Soil Electrical Conductivity (Ec) Mapping Using Real-Time Soil Sensor”. Jurnal Ilmiah Teknologi Pertanian Agrotechno 5, no. 1 (April 28, 2020): 9–13. Accessed January 22, 2026. https://ejournal1.unud.ac.id/index.php/agrotechno/article/view/3816.