Ramadhan FD, Hariyanto Teguh, Handayani HH. Analysis of Urban Built-up Expansion Based on Combination of Spectral Indices in Surabaya City. geoid [Internet]. 1 Agustus 2021 [dikutip 11 April 2026];17(1):21-37. Tersedia pada: https://journal.its.ac.id/index.php/geoid/article/view/1702