Tham khảo Maca

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  2. National Research Council (1989). Lost crops of the Incas: little-known plants of the Andes with promise for worldwide cultivation. Washington, D.C: National Academy Press. p. 57.
  3. Downie, Andrew. "On a Remote Path to Cures" New York Times. ngày 1 tháng 1 năm 2008.
  4. Taylor LG (2005). The healing power of rainforest herbs: a guide to understanding and using herbal medicinals. Garden City Park, NY: Square One Publishers. ISBN 0-7570-0144-0.
  5. National Research Council (1989). Lost crops of the Incas: little-known plants of the Andes with promise for worldwide cultivation. Washington, D.C: National Academy Press. p. 57.
  6. Ernst E, Posadzki P, Lee MS (September 2011). "Complementary and alternative medicine (CAM) for sexual dysfunction and erectile dysfunction in older men and women: an overview of systematic reviews". Maturitas 70 (1): 37–41. doi:10.1016/j.maturitas.2011.06.011. PMID 21782365.
  7. Brooks NA1, Wilcox G, Walker KZ, Ashton JF, Cox MB, Stojanovska L. "Beneficial effects of Lepidium meyenii on psychological symptoms and measures of sexual dysfunction in postmenopausal women are not related to estrogen or androgen content" http://www.ncbi.nlm.nih.gov/pubmed/18784609
  8. http://www.webmd.com/sex-relationships/guide/the-truth-about-maca?ecd=wnl_men_012511
  9. http://dantri.com.vn/suc-khoe/lepidium-meyenii-thao-duoc-danh-cho-quy-ba-1319238715.htm