Pinto-Acero, Y. L., Álvarez-Herrera, J. G., & Forero-Ulloa, F. E. (2016). Effect of tillage on the structural stability and resistance to penetration of a Inceptisol planted with arracacha (Arracacia xanthorrhiza Bancroft) in Boyaca. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC.

Pinto-Acero, Yomaira Liney, Javier Giovanni Álvarez-Herrera, and Fabio Emilio Forero-Ulloa. Effect of Tillage on the Structural Stability and Resistance to Penetration of a Inceptisol Planted with Arracacha (Arracacia Xanthorrhiza Bancroft) in Boyaca. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC, 2016.

Pinto-Acero, Yomaira Liney, et al. Effect of Tillage on the Structural Stability and Resistance to Penetration of a Inceptisol Planted with Arracacha (Arracacia Xanthorrhiza Bancroft) in Boyaca. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC, 2016.