Ghimire, K., D. Gautam, K. Mishra, K. Pande, and A. GC. “Influence of Biogass Slurry and Urea on Yield and Quality of Okra (Abelmoschus Esculentus L.) Fruits”. Journal of Agriculture and Environment, vol. 16, June 2015, pp. 161-9, doi:10.3126/aej.v16i0.19849.