Tutiek Purwanti, and Dewi Melani Hariyadi. “Effect of Sodium Alginate Concentration on Characteristic, Viability, and Antibacterial Activity of Probiotic-Alginate Microparticles”. World Journal of Pharmaceutical Sciences, vol. 3, no. 3, Mar. 2015, pp. 426-9, https://wjpsonline.com/index.php/wjps/article/view/sodium-alginate-antibacterial-probiotic-alginate-microparticles.