Bac, Vo Hoai, et al. “Optimized Extraction of Polysaccaride from <i> Pseuderanthemun Caruthersii < i> (Seem.) Guill. <i>. Var. Atropurpureum < I> (Bull.) Fosb”. <i>Academia Journal of Biology</i>, vol. 40, no. 2, Nov. 2018, pp. 162-7, doi:10.15625/0866-7160/v40n2.12697.