KUMAR, Arun; THAKUR, T C. An Experimental Investigation into the Performance of Conventional and Winged Type Subsoilers. Journal of Agricultural Engineering, India, v. 44, n. 2, 2007. Disponível em: https://epubs.icar.org.in/index.php/JAE/article/view/14499. Acesso em: 6 jun. 2026.