Rawat, Laxmi, et al. “Biomass, Productivity and Nutrient Retention in <I>Acacia catechu< I> Willd. Plantations in Shiwalik Hills of Punjab Shiwalik Hills of Punjab”. Indian Forester, vol. 134, no. 2, Feb. 2008, pp. 212-25, doi:10.36808/if/2008/v134i2/676.