Sari, P., 		Indarto, I., 		Mandala, M., & 		Cahyono, B.
(2021).
 Mapping of Soil Quality Index (SQI) for Paddy Fields Using Sentinel-2 Imagery, Laboratory Analysis, and Principal Component Analysis.
<em>Geosfera Indonesia, 6</em>(2), 173-188.
doi:10.19184/geosi.v6i2.24506