Aginta Sembiring, E., Y. Aldi, and S. Susi. “DAYA HAMBAT JUS APEL MANALAGI (MALUS SYLVESTRIS) TERHADAP PERTUMBUHAN BAKTERI PORPHYROMONAS GINGIVALIS SECARA IN-VITRO”. Andalas Dental Journal, Vol. 6, no. 2, Oct. 2018, pp. 87-92, doi:10.25077/adj.v6i2.122.