Tufik, C. B. “Productivity of Potato Seed Submitted to Different Doses of Potassium in Hydroponic System”. Emirates Journal of Food and Agriculture, Vol. 31, no. 7, Aug. 2019, pp. 555-60, doi:https://doi.org/10.9755/ejfa.2019.v31.i7.1979. Accessed 2 Feb. 2023.