Cadena, B. P., D. Egas B., H. Ruiz E., J. Mosquera G., and O. Benavides. “Effect of Five Tillage Systems on Soil Erosion of a Haplustand Vitric Soil Sown With Potato (Solanum Tuberosum L.)”. Revista De Ciencias Agrícolas, vol. 29, no. 2, Feb. 2013, pp. 116-28, https://revistas.udenar.edu.co/index.php/rfacia/article/view/461.