Abebe, T., S. Wongchaochant, T. Taychasinpitak, and O. Leelapon. “Variation of Mineral Concentrations Among Different Potato Varieties Grown at Two Distinct Locations in Ethiopia”. Agriculture and Natural Resources, vol. 46, no. 6, Dec. 2012, pp. 837-50, https://li01.tci-thaijo.org/index.php/anres/article/view/242997.