J. E. Cárdenas, O. V. Urquizo, M. I. Cárdenas, R. Fernández, and V. Orzag, “Soils Degradation and Kind of Producer for Sustainable Cultivation of Quinoa in the InterSalar of Oruro’S Department, Bolivia”, Agrocienc Urug, vol. 19, no. 3, p. 22, Dec. 2015.