Nguyen, D. T., M. T. Nguyen, and T. X. T. Vo. “Comparative Analysis of the Bioactive Compound, Pigment Content and Antioxidant Activity in Different Parts of Pouzolzia Zeylanica Plant”. CTU Journal of Innovation and Sustainable Development, vol. 11, no. 2, July 2019, pp. 97-105, doi:10.22144/ctu.jen.2019.029.