Rawal, Nabin, Keshav Kumar Acharya, Chet Raj Bam, and Kamal Acharya. 2018. “Soil Fertility Mapping of Different VDCs of Sunsari District, Nepal Using GIS”. International Journal of Applied Sciences and Biotechnology 6 (2):142-51. https://doi.org/10.3126/ijasbt.v6i2.20424.