Calibration of a Manual Cone Penetrometer using a Digital Penetrologger. American Journal of Agricultural Science, Engineering, and Technology, [S. l.], v. 1, n. 1, p. 40–48, 2017. DOI: 10.54536/ajaset.v1i1.23. Disponível em: https://e-pallipublishers.com/index.php/ajaset/article/view/23. Acesso em: 21 apr. 2026.