Neerapa Chandrapho. 1997. Relationship between Porphyromonas gingivalis and periodontal status in dental patients. Faculty of Graduate Studies, Mahidol University;
Neerapa Chandrapho. (1997) Relationship between Porphyromonas gingivalis and periodontal status in dental patients . Mahidol University/Bangkok.
Neerapa Chandrapho. Relationship between Porphyromonas gingivalis and periodontal status in dental patients. . Bangkok:Mahidol University, 1997.
Neerapa Chandrapho. (1997) Relationship between Porphyromonas gingivalis and periodontal status in dental patients . Mahidol University/Bangkok.