“Antibacterial activity of Silver Nanoparticles Using Stem bark of Juglans regia against, Streptococcus mutans , Streptococcus. sanguis and ,Porphyromonas gingivalis” (2018) Mustansiria Dental Journal, 9(2), pp. 184–189. doi:10.32828/mdj.v9i2.262.