“Characterization and Classification of Paddy and Associated Non Paddy Soils of Upper Brahmaputra Valley of Assam”. Global Journal of Science Frontier Research 20, no. D3 (March 15, 2020): 1–11. Accessed April 8, 2026. https://www.journalofscience.org/index.php/GJSFR/article/view/2660.