Daya Antibakteri Ekstrak Daun Sisik Naga (Drymoglossum piloselloides [L.] Presl.) terhadap Streptococcus viridans (Antibacterial Activity of Sisik Naga Leaf [Drymoglossum piloselloides [L.] Presl.] Extract Towards Streptococcus viridans) - Haninah (UNEJ PRESS, 2016)