Klein, V. A., Madalosso, T., & Baseggio, M. (2013). Proctor compaction test – methodology analysis and worksheet to calculate the maximum soil density and optimum moisture content. Revista De Ciências Agroveterinárias, 12(2), 199–203. Retrieved from https://revistas.udesc.br/index.php/agroveterinaria/article/view/5214