- Singh, W. Roshan., et all. "Transformation of nutrients and heavy metals during vermicomposting of the invasive green weed Salvinia natans using Eisenia fetida." International Journal of Recycling of Organic Waste in Agriculture, vol. 5, no. 3, pp. 205 - 220, https://doi.org/10.1007/s40093-016-0129-3