N. N. Pham Thi and B. V. Truong Thi, “Prevalence and reduction of <em>Streptococcus mutans, Streptococcus sobrinus</em>, and Streptococcus sanguinis in Vietnamese students following fluoride varnish application”, AJB, vol. 47, no. 3, pp. 89–104, Sep. 2025.