Sulastri, Ni Nyoman, 		Shibusawa, Sakae, AND 		Kodaira, Masakazu.
" Soil Electrical Conductivity (Ec) Mapping Using Real-Time Soil Sensor" <em>Jurnal Ilmiah Teknologi Pertanian Agrotechno</em> [Online], Volume 5 Number 1 (28 April 2020)