[1]Phuong, N.T. et al. 2020. Some characteristics and allopurinol release of carrageenan/ allopurinol films using polyethylene oxide as a dispersion aid agent. Vietnam Journal of Science and Technology. 58, 2 (Mar. 2020), 219–227. DOI:https://doi.org/10.15625/2525-2518/58/2/13870.