M. M. SELVAN, S. J. K. ANNAMALAI, C. S. RAVINDRAN, and J. T. SHERIFF, “Development of power weeder for mound-cassava in hilly terrain”, Indian J Agri Sci, vol. 85, no. 9, pp. 1206–1209, Sep. 2015, doi: 10.56093/ijas.v85i9.51628.