[1]
Puspita sari, N., Iman Santoso, T. and Mawardi, S. 2013. Distribution of Soil Fertility of Smallholding Arabica Coffee Farms at Ijen-Raung Highland Areas Based on Altitude and Shade Trees. Pelita Perkebunan (a Coffee and Cocoa Research Journal). 29, 2 (Aug. 2013). DOI:https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v29i2.57.