Saha, Dipankar, and Tapan Kumar Das. 2026. “A GIS-Based Systematic Soil Sampling Approach Using Landscape Ecological Units (LEUs) for Soil Characterization in Alipurduar District, West Bengal, India”. RESEARCH REVIEW International Journal of Multidisciplinary 11 (4): 102-11. https://doi.org/10.31305/rrijm.2026.v11.n04.012.