Purwanto, P., & 		Susilawati, I.
2014 Jan 10.  Induksi Streptococcus mutans terhadap Aktivitas Proteinase Netrofil pada Degradasi Kolagen Tipe IV  (Induction of Streptococcus mutans on Neutrophil Proteinase Activity in Degradation of Type IV Collagen)  . Pustaka Kesehatan. [Online] 2:1