Performance modelling and optimization of disc angle and tractor speed for a disc ridger in loamy soil using RSM. International Journal of Agricultural Research, Innovation and Technology, [S. l.], v. 15, n. 1, p. 62–69, 2025. Disponível em: https://ijarit.online/index.php/journal/article/view/177.. Acesso em: 10 mar. 2026.