G. F. Gonzales, L. Villaorduña, M. Gasco, J. Rubio, and C. Gonzales, “Maca (Lepidium meyenii WALP), a review of its biological properties”, Rev Peru Med Exp Salud Publica, vol. 31, no. 1, Mar. 2014, doi: 10.17843/rpmesp.2014.311.15.