DORRONSORO, C.; DELGADO, M. Fundamentals of a method for studying the coarse sand fraction of soils. Ars Pharmaceutica (Internet), [S. l.], v. 11, n. 7-10, p. 361–375, 1970. Disponível em: https://revistaseug.ugr.es/index.php/ars/article/view/9734. Acesso em: 18 may. 2024.