“VARIABILITY OF NORMALIZED DIFFERENCE VEGETATION INDICES IN SUMATRA AND ITS RELATION TO CLIMATE ANOMALIES(KERAGAMAN INDEKS VEGETASI DI SUMATERA DAN HUBUNGANNYA DENGAN ANOMALI IKLIM)”. Agromet 19, no. 1 (June 14, 2005): 21–38. Accessed March 28, 2026. https://journal.ipb.ac.id/agromet/article/view/3443.