S. K. Nandal, B. K. Beheral, D. Beheral, A. K. Goel, and P. L. Pradhan. 2008. “Efficacy of Sprayers Against Pests in Paddy Crop”. Journal of Agricultural Engineering (India) 45 (4): 9-14. https://doi.org/10.52151/jae2008454.1345.