Bac, Vo Hoai, et al. “OPTIMIZED EXTRACTION AND IMMUNOSTIMULATORY EFFECTS OF POLYSACCHARIDES FROM PSEUDERANTHEMUM PALATIFERUM (NEES) RADLK”. Vietnam Journal of Biotechnology, vol. 16, no. 2, Dec. 2018, pp. 327-35, doi:10.15625/1811-4989/16/2/13445.