Sang, Nguyễn Thị Minh, et al. “ANALYSIS OF TRACE ELEMENT CONCENTRATIONS IN ARTICHOKES AT DALAT USING TOTAL REFLECTION X-RAY FLUORESCENCE”. Dalat University Journal of Science, vol. 10, no. 3, Sept. 2020, pp. 67-76, https://doi.org/10.37569/DalatUniversity.10.3.699(2020).