Purwoko D, Handoko EY, Sopaheluwakan A. Comparative Analysis Of Landsat 8 And Landsat 9 Satellite Image Data In Surface Temperature Estimation, NDVI and NDBI Using Goggle Earth Engine. geoid [nternet]. 2025Dec.10 [cited 2025Dec.14];20(2):93-113. vailable from: https://journal.its.ac.id/index.php/geoid/article/view/8016