Sari PT, Indarto I, Mandala M, Cahyono BE. Mapping of Soil Quality Index (SQI) for Paddy Fields Using Sentinel-2 Imagery, Laboratory Analysis, and Principal Component Analysis. Geos. Ind. [Internet]. 2021 Aug. 17 [cited 2025 Apr. 18];6(2):173-88. Available from: https://geosfera.jurnal.unej.ac.id/index.php/GEOSI/article/view/24506