Siriluck Tiranathanagul และ Prasit Pavasant. (2004) Effect of Porphyromonas gingivalis and Actinobacillus actinomycetemcomitans on the mechanism of matrix metalloproteinase-2 activation in human periodontal ligament cells. Chulalongkorn University:ม.ป.ท.Siriluck Tiranathanagul และ Prasit Pavasant. 2004. Effect of Porphyromonas gingivalis and Actinobacillus actinomycetemcomitans on the mechanism of matrix metalloproteinase-2 activation in human periodontal ligament cells. ม.ป.ท.:Chulalongkorn University;Siriluck Tiranathanagul และ Prasit Pavasant. Effect of Porphyromonas gingivalis and Actinobacillus actinomycetemcomitans on the mechanism of matrix metalloproteinase-2 activation in human periodontal ligament cells. ม.ป.ท.:Chulalongkorn University, 2004. Print.