Wibowo, A., Ismullah, I. H., Dipokusumo, B. S., & Wikantika, K. (2013). Land Degradation Model Based on Vegetation and Erosion Aspects Using Remote Sensing Data. Journal of Mathematical and Fundamental Sciences, 44(1), 19-34. https://doi.org/10.5614/itbj.sci.2012.44.1.3