KYRYLENKO, Iryna G, FLYUNT, Igor-Severyn S, FIL’, Vitaliǐ M, ZUKOW, Walery and POPOVYCH, Igor L. Changes in electrokinetic index of buccal epithelium correlated with changes in some parameters of immunity and fecal microbiocenosis. Journal of Education, Health and Sport. Online. 26 October 2018. Vol. 8, no. 10, pp. 168-174. [Accessed 13 December 2025].