Sinha, Rajiv K., George Hahn, Pancham K. Singh, Ravindra K.Suhane, and Allam Anthonyreddy. “Organic Farming by Vermiculture: Producing Safe, Nutritive and Protective Foods by Earthworms (Charles Darwin’s Friends of Farmers)”. Journal of Experimental Agriculture International 1, no. 4 (September 9, 2011): 363-399. Accessed October 24, 2021. https://journaljeai.com/index.php/JEAI/article/view/25130.