AdiningsihE. S. and .K. (2005) “<b>VARIABILITY OF NORMALIZED DIFFERENCE VEGETATION INDICES IN SUMATRA AND ITS RELATION TO CLIMATE ANOMALIES</b&gt;(KERAGAMAN INDEKS VEGETASI DI SUMATERA DAN HUBUNGANNYA DENGAN ANOMALI IKLIM)”, Agromet. Bogor, Indonesia, 19(1), pp. 21-38. doi: 10.29244/j.agromet.19.1.21-38.