A Proposed Approach for Plastic Limit Determination Using the Drop-Cone Penetrometer Device. Journal of Engineering and Sustainable Development, [S. l.], v. 12, n. 1, p. 107–117, 2008. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1640.. Acesso em: 15 may. 2024.