Dr A. K. Goel, Monalisha Sahu. “Development of a Multipurpose Power Weeder”. International Journal of Social Sciences and Humanities Invention 4, no. 6 (June 1, 2017): 3527–3531. Accessed May 6, 2024. http://valleyinternational.net/index.php/theijsshi/article/view/813.