“Analysis of Mangrove Vegetation Density Based on SPOT-7-Based Normalized Difference Vegetation Index (NDVI) in Simeulue Regency”. YKP JOURNAL 1, no. 3 (January 2, 2026): 145–151. Accessed February 11, 2026. https://ykpjournal.org/index.php/ykpjournal/article/view/115.