Singh, A.K., et al. “Efficacy of Organic Mulches on Soil Properties, Earthworm Population, Growth and Yield of Aonla Cv. NA7 in Semi- Arid Ecosystem”. Indian Journal of Horticulture, vol. 67, no. Special Issue, Nov. 2010, pp. 124-8, https://journal.iahs.org.in/index.php/ijh/article/view/2142.