T.-H.-A. Nguyen, H. T. K. Dung, and T.-T.-H. Nguyen, “Extraction and physico-chemical characterization of water-soluble polysaccharides from Opuntia dillenii (Ker Gawl.) Haw. Cladodes”, Vietnam J. Sci. Technol., vol. 59, no. 2, pp. 169–178, Mar. 2021.