“Antibacterial and Anti-Adherent Activity of Great Mullein (Verbascum Thapsus L.) Ethanolic Extract on in Vitro Biofilm Formation of Three Oral Streptococci”. International Journal of Health Studies (Undergoing Change to Shahroud Journal of Medical Sciences), vol. 1, no. 2, Nov. 2015, pp. Page: 34-37, https://doi.org/10.22100/ijhs.v1i2.64.