P.S. Yadava, R. K. B. and. “Effect of Shifting Cultivation on Soil Microbial Biomass C, N and P under the Shifting Cultivations Systems of Kangchup Hills, Manipur, North- East India”. Journal of Experimental Sciences, vol. 1, no. 10, Dec. 2010, https://updatepublishing.com/journal/index.php/jes/article/view/1760.