Waiba, K. M.; Dubey, R. K.; Kumar, R.; Sisodia, A.; Rai, N.; Kumar, R.; Barman, K.; Singh, A. K. Comparative Assessment of Oxalic Acid Levels in Fresh, Dried and Fermented Forms of Water Spinach (Ipomoea Aquatica Forsk.). Plant Sci. Today 2026.