Rawal, N., Acharya, K. K., Bam, C. R. and Acharya, K. (2018) “Soil Fertility Mapping of Different VDCs of Sunsari District, Nepal Using GIS”, International Journal of Applied Sciences and Biotechnology, 6(2), pp. 142–151. doi: 10.3126/ijasbt.v6i2.20424.