R. Cilmiaty, A. A. Prasetyo, K. U. N. Zaini, M. Rukmo, S. T. Putra, and W. Asmara, “Prevotella intermedia and Porphyromonas gingivalis in dental caries with periapical granuloma”, Dent. J., vol. 46, no. 4, pp. 213–217, Dec. 2013.